First off, this is my first post in nearly a week from my freshly restored computer, with almost all my files recovered except, oddly, all of my games and the platforms (Steam, emulators) that run them. No FE4 for me for a while, I suppose.
I’ve already explored here and elsewhere some things I’d like to see in a Genealogy remake, and aside from some mechanical lenience and I’d be totally fine with Phoenix Mode for any of them and some canon or potentially canon gayness that’s about all I’ve got for FE4-6 remakes.
As regards FE16 based on what we know so far, I’d love for it to be another experimental branching storyline (whether that means the three houses are fighting each other or not, they can spin that idea several ways) that also ties into one or more of the previous settings so it’s not like Fates existing mostly in a very strange vacuum. I’d be interesting in seeing them attempt another storyline like FE7 that doesn’t center on a war, because it would be kind of a letdown if we eventually learn that there’s a fourth house or foreign power antagonist everyone teams up against – especially when one considers what a letdown Garon was. Hopefully the Avatar won’t take over the plot and they can be secondary to whomever the primary lord(s) is/are at any given point. Claude and Dimitri should be pairable; it’s already a foregone conclusion that they’ll be able to be paired with Edelgard, but they need to go ahead and close the lordly love triangle already. Of course I want my pseudo-Catholic classes, but if they are indeed going Teutonic it would be funny as hell if they attempted something addressing the Catholic/Protestant divide in Germany.
Basically, I want to see Three Houses as a higher concept idea that doesn’t massively disappoint like its immediate non-remake predecessor.