wow, this thread sure did get resurrected out of nowhere lol
I'm still hoping for an updated PTA ride height fix exe, the existing one doesn't work with windows 10 EDIT: found!
For a more "traditional" mod, I'd love to see some touring cars, like compact hatchbacks/sedans like you see in BTCC/WTCC, with ICR style noses so we could keep the mod up to date with templates. That wouldn't just be fun on road courses, but could easily become a fun fictional series for ovals too. I already know exactly what I'd do for a carset if that happened!
As for tracks, I'm still holding out hope that we'll see some more road courses from around the world - we've got nothing from modern Italy or Brazil, for example, two countries that play BIG roles in international racing. I wouldn't mind a 2020 Bullrun update, either.