Yet Another Incarnate Suggestion
I'm sure that they already have a plan.
I wouldn't mind an additional power in each, or at least many of the common pools.
I wouldn't mind them increasing the limit of common pools from 4 to 5 or 6.
Additional powers in each of the existing AT Primary/Secondary sets would be a bit to ask, but who knows? Maybe eventually.
To be honest, I think we need quite a bit more information about the Incarnate system before we can make suggestions . That being said, I am really hoping that at least some of the new powers we gain are based on our existing powerset rather than being based on just our AT or Deity
No idea if this has already been suggested, but I'm going for it.
Instead of giving us Patron or Epic pools to choose from, how about you add a Tenth power to Power sets, and a Fifth power to all power pools? On average, everyone has Two Power Sets, and Two Power pools, and with 10 more levels, that's 4 more earnable powers. They could be ultra powerful moves that still match the powers characters already have, thematically.
For HEATs and VEATs, you'll have to do something completely different. Perhaps add a new Shape to Kheldians with 5 powers, or another small pool for Solders of Arachnos.