According to Les Feldick, yes—believers today are a heavenly people whose citizenship is already in heaven, even while they remain on earth.
Les teaches that the church is not an earthly people like Israel. Because Christ is now in heaven, His kingdom is presently in heaven, and believers have been translated into that kingdom through salvation. They are therefore citizens of heaven now and will rule with Christ when He returns to establish the earthly kingdom.
Colossians 1:12-13 — Paul explicitly says believers have been translated into the kingdom of God's dear Son, which is the passage Les teaches from when answering the question.
Philippians 3:20 — The verse that declares the believer's citizenship is in heaven; Les quotes it as the direct proof of heavenly citizenship.
The King James Scripture speaks plainly of the believer's heavenly position. In Colossians 1:12-13, Paul thanks the Father, "which hath made us meet to be partakers of the inheritance of the saints in light: who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son" (KJV). This shows that the believer has already been transferred from darkness into the kingdom of God's Son. In Philippians 3:20-21, Paul declares: "For our conversation is in heaven; from whence also we look for the Saviour, the Lord Jesus Christ: who shall change our vile body, that it may be fashioned like unto his glorious body" (KJV). Paul also writes in 2 Corinthians 5:17 that "if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new" (KJV). The natural and spiritual distinction is seen in 1 Corinthians 15:45-46: Adam was made a living soul, but the last Adam was made a quickening spirit; "howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual" (KJV).
Les emphasizes the Bible's constant distinction between the nation of Israel, God's earthly people with earthly promises, and the church, God's heavenly people with heavenly promises. Israel had no concept of dying and going to heaven because their hope was earthly. Only in the age of grace do believers become a heavenly people. Quoting Colossians 1:12-13, Les shows that the Father prepared believers to be partakers of the inheritance of the saints in light and has translated them "into the kingdom of his dear Son" (KJV). Since Christ is no longer on the earth, Les says the kingdom went with Him into heaven, and therefore our citizenship is in heaven. To live as a heavenly citizen, Les says believers are left on earth as ambassadors representing their real home. Though we do not feel like it, positionally in God's mind we are already in heaven. When Christ leaves heaven and brings the heavenly kingdom with Him to set up the earthly kingdom, believers will be with Him and will rule with Him.
Les answers this by explaining that Israel was an earthly people with earthly promises. The Jew had no concept of dying and going to heaven because Israel's hope was earthly. By contrast, in the age of grace, believers are a heavenly people with heavenly promises.
Les points to Colossians 1:12-13 (KJV): the Father "hath made us meet to be partakers of the inheritance of the saints in light" and "hath translated us into the kingdom of his dear Son." Because that kingdom is now in heaven with the King, believers are already citizens of glory, even though they are physically on earth.
Les teaches that when God the Son leaves heaven, He brings the heavenly kingdom with Him to set up the earthly kingdom. Believers are "part and parcel" of that kingdom and will be with Him when He becomes King of Kings and Lord of Lords.
Les says the early Christians got into trouble with Rome because their citizenship was in heaven and their Roman citizenship was secondary. Believers are left here as ambassadors of heaven, representing that citizenship as they walk on this earth.
First Natural, Then Spiritual
Les explains the Bible's pattern that Adam is the natural an and Christ is the spiritual; believers connected to Adam are natural/earthly, while those in Christ are heavenly.
Israel vs. the Church
Les teaches that Israel was an earthly people with earthly promises, but believers in the age of grace are a heavenly people with heavenly promises—our citizenship is in heaven even while on earth.
Ambassadors of Heaven
Les teaches that every believer's citizenship is in heaven and that we are left here as ambassadors, representing heaven while walking on this earth.
The Kingdom Is Now in Heaven
Because Christ returned to heaven, Les says the kingdom went with Him; the church is God's heavenly people, and Colossians 1:12 describes our inheritance in light.
The Kingdom Is Now in Heaven (Parallel Teaching)
Les repeats the same teaching from Daniel 2: the kingdom is in heaven with Christ, and the church is God's heavenly people.
Already Positionally in Heaven
Les teaches that although we are on earth, positionally in God's mind we are already in heaven; our citizenship is in heaven and we await the Savior to change our bodies.
Citizens in Heaven, Living on Earth
Les explains the believer's position as a new creation in Christ, reconciled by God, and given the ministry of reconciliation.
Heavenly Kingdom Comes to Earth
Les teaches that our citizenship is in heaven and that we have been translated into the kingdom that is currently in heaven; when Christ returns, we will be with Him in His earthly kingdom.
Colossians 1:12: Giving thanks unto the Father, which hath made us meet to be partakers of the inheritance of the saints in light:
Paul describes the inheritance that belongs to believers and the basis for our being made fit for it.
Colossians 1:13: Who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son:
This phrase is used by Les to show believers have already been moved into the kingdom of Christ, which is now in heaven.
Philippians 3:20: For our conversation is in heaven; from whence also we look for the Saviour, the Lord Jesus Christ:
The KJV word "conversation" here carries the idea of citizenship; it is the core verse Les uses for heavenly citizenship.
Philippians 3:21: Who shall change our vile body, that it may be fashioned like unto his glorious body, according to the working whereby he is able even to subdue all things unto himself.
This verse links heavenly citizenship to the future transformation of our bodies at the Lord's coming.
2 Corinthians 5:17: Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.
Shows the new creation reality of the believer, cited by Les in connection with being a citizen of heaven on earth.
2 Corinthians 5:18: And all things are of God, who hath reconciled us to himself by Jesus Christ, and hath given to us the ministry of reconciliation.
Shows reconciliation and the ministry given to believers, which Les connects to our position as heavenly citizens.
1 Corinthians 15:45: And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit.
Establishes Adam as the natural man and Christ as the spiritual (quickening) man.
1 Corinthians 15:46: Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
Paul's rule that the natural comes before the spiritual, applied by Les to Adam before Christ.
Yes. Les teaches that believers have been translated into the kingdom of God's dear Son, which is currently located in heaven. So our citizenship is in heaven now, even though we are still physically on earth.
Les says believers are left on earth as ambassadors of heaven. We are to represent that citizenship as we walk on the earth, and we wait for the Savior, who will change our vile body to be like His glorious body.
Les teaches that Israel was an earthly people with earthly promises and had no concept of dying and going to heaven. That heavenly hope belongs to believers in the age of grace.
Watch the Teaching: Why Adam's Sin Condemned You — Romans 5 Explained