Sure, I'll make one. I'm going to try to keep it realistic on my expectations.
Track: It will be a new layout for a track already in the game, maybe an infield version of Northern Isle Speedaway I guess.
I say this as I noticed a pattern form. 1 month brings a new track layout for a track already in the game with the following month actually bringing a new course to the game. Spa Franchorchamps or whatever new-to-GT Sport course PD has planned most likely won't come until July at least.
Cars, I'm basing this off of past releases so far.
- Mazda 787b - A premium Group C race car in GT6, would be easy for PD to update.
- Minolta Toyota 88c-V - A standard group C car from PD's past, Polyphony has already demonstrated that they remember their old standard cars still. So, it can happen.
- Porsche 962C - Based on the idea that PD continues Group C race car additions. It's one of the more well-known cars of this era.
- Toyota TS010 Race Car - Alternative possibility to the 88c-V.
- Mitsubishi Lancer Evolution IX GSR '06 - Since PD started adding Mitsubishis with the Evo. IV Lancer, I imagine that they will act like in the other JPN makes and continue additions. This is one of the only premium Mitsubishi road cars I can think of that would be easy for PD to remodel.
- Mitsubishi Lancer Evolution VI GSR TME SCP '99 (or one of the other TMEs), Once again, another premium road going Mitsubishi. Though, it's also likely that PD could add both Evos at once. They did add 2 Skyline GT-R generations at once before.
- Nissan Silvia K's Dia Selection (S13) '90 - This and the S15 are possible since they're both premiums in GT6, thus would be easy to update for GT Sport. The second reason is PD just plain likes adding Nissans.
- Nissan Silvia Spec R Aero (S15) '00
- Ueno Clinic Mclaren F1 GTR '95 - Premium in GT6. PD seems to be slowy adding new racing eras starting with the vintage, 1960s race cars (Ferrari P4 and Jaguar XJ13), Super GT cars, and recent Group C cars. It's possible that they would think of adding 1990s GT cars to the formula.
- Alternatively, BMW Motorsport Mclaren F1 GTR Longtail '97 since a premium upgrade is possible.
- Mazda Autozam AZ-1
- Suzuki Cappucino
- Volkswagen 1600 Beetle '62