At this point most of my wishlist/concerns are stuff at the margins I don't expect to be showcased. None of these are dealbreakers and most of it is kind of personal and nitpicky, it'd just be nice to have, and hopefully some of these are in the game but haven't been talked about yet.
-character avatars: will they be more diverse in age/body type/look, or is it going to be just a bunch of photogenic babyfaced under-30s with gym memberships? Also, will we be able to save looks/outfits? It'd be nice to actually have a bunch of different hot-swappable avatars/drivers for different contexts, like RPing a racing team or somesuch.
-license plates: I'm kind of annoyed they didn't get the font right, but other than that, can we finally have different plates for different cars in our garage, or is it still going to be the same plate for every one you drive unless you manually change it?
-blueprints: I think I already brought this up, but again, I want to have more choice and specificity in my custom races. If I want to have a one-on-one battle between a '71 Skyline and a '73 RX-3, or a 12-car field where I get to pick each one of my opponents' cars, I'd appreciate the choice to do it instead of being limited to picking a car category and hoping its RNG gives me an interesting field to go up against.
-opponent livery options: I know it's usually all-or-nothing, and the online/social aspect means I'm always going to see somebody's goofy Spongebob/Monster Energy/ugly-font-choice/Christmas-in-July designs. But in blueprint/custom/singleplayer mode I'd at least like to have the capability of choosing liveries I've downloaded/liked to be the default for opponents rather than being served up low-effort/meme slop.
-car sorting/categories: the choice between favorites and everything else isn't going to cut it. I'd like to have more granular category options, so if I feel like driving one of three dozen fully tuned and tweaked cars I can sort through them a bit more easily.
I guess this is the kind of thing still left on my wishlist after seeing all those touge routes and highways and Tokyo back alleys and also confirmation that the Furai's in. Not a bad problem to have.