The Aether Foundation was a whole lot of nothing. There was never really any sense of their ultimate objectives, or their structure, or even how they fit into Alola as a whole. They were just kinda there. They did some bad stuff, and they did some good stuff. But they didn't really have much of an identity of their own outside of their absurdly youthful-looking psychotic President.
Irrespective of whether these games are sequels or not, I'd like the Aether Foundation to have some kind of an identity in them. Clear goals, clear involvement in the world at large, and a clear point. Not just a slightly more organised version of Team Skull.