My predictions:
-Reveal of silhouettes next Sunday, which is my birthday. Three to five cars will be shown, and a release date of sometime that week, between Tuesday and Thursday.
-I'd think there could be a new circuit, but whether it's a returning one, a new original layout to a pre-existing venue, or a new venue altogether is anyone's guess. My bet for the next returning circuit would be either Apricot Hill or Twin Ring Motegi. New layout could be an additional Colorado Springs layout, a Tokyo Expressway North/West, or (ideally) the return of Suzuka West. My bet for a new venue? Either Lime Rock Park, or maybe a circuit that's set somewhere relatively novel in the world of GT, such as Kyalami, Phillip Island, or the Dubai Autodrome. Unfortunately, as much as I'd like to see Fuji Speedway circa the 1960s - with the large banked first turn - I don't think we'll see historic layouts in GT anymore.
-I think the Gr.1-spec Genesis VGT could be coming sooner than later, as far as VGTs go. On that note, I think we can ignore the older list of VGT brands, as I don't recall there being a way to navigate to it on the official site. But I wouldn't count out Bertone anymore, either, as I think they were just revived, and with a new concept known as the GB110. Of course, I'd hope that the VGT program would ideally be a way for various automakers to get Gr.1-spec machines that either never had them, or haven't had a racing prototype in a while, like Alfa Romeo or Ford. We also can't discount the idea of a brand who already has a VGT making another one, as seen with Jaguar and Peugeot, so I'd love to see a Pininfarina-branded VGT, especially since the Fittipaldi EF7 is no more. I'd even be fine if it was just a racing version of the Battista - as long as it fit into one of the major groups, that is, so that'd likely mean making it a hybrid, or full-ICE. Now, if Mercedes-Benz/AMG could make another VGT, but make it a Gr.1 car in the vein of LMDh/LMH, that'd just be amazing.
-As for other cars beyond VGT, I'm not sure if we can rely on the datamined list anymore. While I'm still very excited for the cars in that list, I'm just as excited over the idea of the cars truly being anyone's guess. Now that we have the Citroen DS, I'd hope that the 2CV wouldn't be too far behind, or perhaps other iconic European compacts, like the Golf Mk.IV R32. There are also some iconic models that don't seem to be in the datamined list, like the Porsche 959 and 914, a ton of older Alfa Romeo models like the Tipo 33 Stradale or the Spider, the Alpine A310, or the older Fiat 124 Sport Spider. But what cars get added will likely bring me to my next topic.
-The cars that are required for the next Extra Menu(s) will likely play into the cars getting introduced in that update. Unfortunately, I think there are some very iconic brands that simply don't have enough cars to create a solid Extra Menu just yet, such as Aston Martin, Jaguar, and McLaren. So far, we've seen the required cars originate from not just Brand Central, but the UCD and even Legendary Cars, as well. With the relatively recent Bugatti menu, we've even seen a car be required that's locked behind an invite. Heck, not every car in an Extra Menu needs to even be from that brand exactly, as we can see with the menus featuring Abarth and Honda Motorsport. So that leaves quite a few possibilities, especially when you experiment with more niche ideas like engine placements/types. My potential ideas - using the current car list - were as following:
-V12 Lamborghini models - Miura Prototype, Countach 25th Anniversary, Aventador SV
-Homologation Specials - Porsche 911 GT1 Road Car, Plymouth Superbird, Lancia Stratos
-Citroen - Citroen DS, Citroen "GT by Citroen" Road Car, DS3 Racing
-Honda S Series - Honda S800, Honda S2000, Honda S660
-Group C - Mazda 787B, Mercedes-Benz Sauber C9, Nissan R92CP