He should be if this level of play keeps up. He won't get another 4-year deal at age 35, but maybe 2-year deals with the 2nd being a player option.
While I would love to see Jae to Milwaukee, Phoenix and Milwaukee are the 5-7 legitimate title contenders in the NBA. There is always the potential for another 2021 NBA Finals rematch. I can't imagine Phoenix would do anything that would potentially make Milwaukee better/deeper than they already are right now. Certainly Grayson Allen is the name floated around the most. I hope we keep Beauchamp, really like the kid.