Alright, diving into Ann and Makoto pairings. Honestly, I think the most underexplored angle is actually leaning into their post-canon lives, long after the Phantom Thieves stuff has faded. Not another 'they're both Phantom Thieves' story, but something where they're navigating totally separate adult paths that force them to reconnect on completely new terms.
Imagine Ann, struggling with the disillusionment of the modeling industry after the initial glamour, maybe starting her own inclusive agency or teaching self-defense workshops for women. Makoto, meanwhile, hits a wall in the police force or public service, facing the systemic corruption they fought against but now from the inside. They bump into each other at some community event, tired and a little jaded, and that spark reignites not from shared danger, but from shared burnout and a need for someone who gets the real cost of trying to change the world.
The friction would be fantastic—Ann's emotional, instinct-driven approach clashing with Makoto's methodical, by-the-book training, but now with the maturity to see the value in the other's method. You could get some really quiet, powerful moments about finding solace in someone who remembers the weight of the Metaverse without having to talk about it directly. Less heist planning, more late-night conversations over cheap ramen about whether any of it really mattered, which I find way more compelling for these two specifically.
Ending on a note of tentative hope, them deciding to build something new together, feels right for their characters.