Is it just me, or does that courtyard somehow look bigger than USJ's? I'm guessing the shop will be under the mountain and the Toad restaurant will be under Bowsers Castle in the corner, with Mario's Motors to the right at the very end of the second story. That leaves almost the entire second story (including inside the mountain) for the play areas.Looks like this was just uploaded.
Also, it's funny how there's an existing building (I think Panda's Express) built into SNW. They didn't even bother getting rid of it lol