What does interest me is, what will Mountain Dwarves look like in 2024?
They have always been effective but boring, now they're weirdly versatile for a stalwart and conservative people.
I'm guessing a choice of X number of weapon and armor proficiencies and artisan's tools, and powerful build. Maybe an ability to keep going when others would drop, modeled by some sort of ability to mitigate exhaustion?
I don't think Hill Dwarves will change much, tbh.
Are there any other races that seem like they'll change a lot? TBH I don't think Half-Elves or Half-Orcs will actually see much change. Why would they? They're basically subraces, anyway, and closer to how subraces are being handled going forward, so, little bit of cleaning up at most, IMO.
I don't think any of the elves will change more than Shadar-Kai and Sea Elves did.
Forest Gnomes, I'm more on the fence about, and Rock Gnomes are the only race that i really hope gets a decent reworking. Obviously I think Dragonborn will look more like their Fizban's counterparts, and I could see halflings just having "choose one of these traits" instead of lightfoot and stout races.
Tieflings IMO will only see their ASI's change.