My ideal car/track additions:
Real-world track: Lime Rock Park (USA)
GT-original track: New York City
Additional real-world layout: Le Mans Bugatti Circuit
Additional GT-original layout: Colorado Springs (Since it follows the same naming format as other venues that'd had additions, like Dragon Trail, Sardegna, and Alsace.)
New road cars: Hyundai Veloster N/Callaway C16 Coupe/Ferrari Sergio
Returning road cars: Callaway C12/Alfa Romeo Brera Q4 '06/Aston Martin V8 Vantage '99
New race cars: Aston Martin Vantage DTM/Toyota GR Supra (A90) GT500/Ferrari 296 GT3
Returning race cars: Honda NSX GT500 (JGTC)/Audi R8 LMS Ultra '12/Toyota GT-One (TS020)
Ideal VGT brands to debut: GM Design/Ford/Italdesign*
Ideal VGT brands for another car: Pininfarina/Toyota/Subaru
* I know these three were seen in the VGT brands page, but I think the plan has changed in this regard, as that page cannot be accessed directly through the official GT website. Plus, other brands, like Suzuki, were not in the initial list of brands. We also still have no idea what's going on with other supposedly planned VGTs, like from Nike, Jordan, and Tesla. But it'd be real cool if we got a Corvette VGT as well as the new Cadillac LMDh racer - with both in Gr.1.
CLK-GTR Strassenversion or GT1 version:
Why not the road-going CLK-LM, since we have the racing version already? It's also much more rare - not that the road-going CLK-GTR wasn't rare to begin with.