As far as scope goes I can see pretty much everything coming to fruition, especially with UE5 coming.
The thing that creates a knot in my brain is trying to imagine how can the push-pull effect of the world be balanced. At least in a way that looks plausible. But maybe I'm overthinking it.
I'm literally only interested in PSO2NGS.
HOWEVER FF XIV will always be in the pocket. There are particular reasons why I don't play it more (because I don't care about side content and I don't really have a group of friends I identify with playing it too), but it's literally the one PVE MMORPG...
I think the more interesting part is how the layers on maps are gonna be used. Landscape changing with terraforming and such except that in a much better scale than was possible before.