In Philippians 3:20, is 'conversation' better translated as 'citizenship'?

Les explains that Paul always writes to the believer. In Philippians 3:20, the word 'conversation' in the text has a margin or newer translation that is better rendered 'citizenship.' He emphasizes that our citizenship is in heaven and that we are already in the kingdom. From there we look for the Savior, the Lord Jesus Christ, who will change our vile body—this one prone to sickness, death, and corruption—to be fashioned like His glorious body, His post-resurrection body. Les points out that Christ attained that glory at resurrection, as in John 17, and that studying the 40 days of His post-resurrection life helps us understand our resurrected body.