I think is nothing short of a miracle that XI and XIV (and a DQ one I think) are still running.

Avengers went belly up, that bizarre ff7 flavored fortnite-like died super quickly and that one co-op game whose name I forgot also tanked in a few months.
Square is probably terrified of such a big risk, specially when a couple of low effort cellphone games can keep them in the green.

They are also more trend chasers than setters now, I fully expect their next online venture to be closer to something like Genshin rather than a traditional or original idea.

Too bad the XI "remake" never happened. I'm still curious what would have happened.