Despite everything, my best guess is it's gonna be the standard SP/MP disc like it should be. I just hope the city is as detailed as it's size.
I think there might be a chance that you'll be able to play everything from 1 disc, but will have to download content from multiple discs.
Massive Thanks to Rajeanero for the Shelby's!
10,000 Achievements - 13 July 2014