I don’t think Tatum will move on. He’s in a good position in Boston, made the WCF last year and the finals the year before. And Boston’s shown they’re willing to make moves to build around Tatum and Brown. Plus he loves Kobe, so he might want to star with one team like Kobe did.
I doubt that Giannis will leave Milwaukee, at least any time soon. He seriously just won the title there 2 years ago.
I don’t think Giannis is going anywhere, but the Bucks window for contention is pretty short. Lopez is the perfect frontcourt partner for Giannis and I’m skeptical they can find anyone near as ideal a fit if he doesn’t re-sign this offseason. Not to mention Jrue and Khris are both in their 30’s and starting to decline. If Mil doesn’t make some good signings or trades then they could become a non-contender faster than people might expect.