What does Deuteronomy 3:20 mean?

Once the Lord gives rest to your fellow Israelites, just as he’s done for you, and they’ve taken the land across the Jordan, then you can all go back and settle in your own land, which I’ve given you on this side of the Jordan.' Deuteronomy 3:20 - Modern Text Bible

(After the rest of Israel has their land and peace, the eastern tribes can return home for good.)