It would be absolutely fantastic to see Dončić and Jokić playing in the same team. They would be a big contender for the championship. But I don't see any reason for the Lakers to let Dončić go. I also don't think the Nuggets have enough pieces for doing such a trade. This rumor doesn't seem very realistic to me. Of course, anything can happen in the NBA. Considering how Luka left the Mavs, you can't rule anything out.
Luka will probably stay with the Lakers. He’s a big draw, and the team makes more money when he’s playing alongside LeBron. I think the Mavs have already moved on, they’ve got a new roster now and even landed the first pick. Who knows, maybe that guy ends up becoming the new face of the Mavericks. Just imagine how dominant they’ll be in the paint with Davis and the other bigs. It’s going to be huge if they can also lock down the perimeter on defense.