Malandros—other tight knit communities in tumultuous times with that attention to detail and focus, please!
The elegance that can be found at the core of Cthulhu Dark applied to something different than cosmic horror (there is also a free version of the two page of rules that game has but CN for use of ableist terminology that's changed in the official release).
Super selfishly I'd like some people to do the mind-boggling work of writing new sets of lifepaths and re-working the skills and traits lists of Burning Wheel to match. With, as applicable, a new emotional attribute here or there. Just to center the entire game differently (tbh, I don't know if this is possible). Also, the game could use another social minigame next to the Duel of Wits.
I also need to play some more Good Society but I feel like the core of it could very well be applied to different literary inspired works and their associated societies? Like, I've read people drifting it in the direction of Tolstoy and I can imagine stuff that goes more into the magical realism way of Gabriel García Márquez, for example.