Will resurrected believers interact with people still in flesh and blood during the millennium?
Yes. There will be a certain amount of interfacing between resurrected church-age believers and millennial citizens who remain in flesh and blood. While the Body of Christ rules the heavenlies and Israel has the earth, believers in resurrected bodies will still have some interaction with flesh-and-blood millennial people.
Les explains that the church-age believer, the Body of Christ, is destined to rule the heavenlies, while Israel will have the earth. Even so, he says there is going to be a certain amount of interfacing between those in resurrected bodies and the millennial citizens who will be in flesh and blood. This fits with his wider point that there are areas of reward for believers, though salvation itself is never earned but is the gift of God through Jesus Christ.