Probably the redditor answer but anything based in the Avatar The Last Airbender universe. Like a rogue-like to make it not immediately overpower-y to be the Avatar. Think Hades. Like imagine basically Speedrunning as the Avatar and trying to take down some powerful Anti-Avatar god. Make it really feel fulfilling to learn the methods so that you can use powers aside from your starting base tribe and end up a fuckin lava/flying after dozens of hours of playtime. Fuck that'd be cool. It'd give some good reasons for some cool "recurrence" themes too of enemies from different nations coming to power and needing overthrown and how the grunts would look.
I'm ranting but I've wanted something like this for a while, and after playing Hades, the formula just seems perfect