Good ideas. Why not a hotel or hotels? To me, this all speaks toward having mini hotels, themed to each country in the upstairs and behind the pavilion. Try making it less mass oriented too, like a B&B type of personal attention where you stay and live as that culture does or did. You feel a bit like a local or the host "family of the Inn" knows your name. I'd have a radio in the room with Brazilian broadcasts and even channels on the TV from there. That could be insanely cool and fun. Staying in Brazil would be awesome. The exchange students would work those places so you really get the feel of that type of hospitality and customs. I'd do a family style meal where the guests all show up for buffet breakfast Brazil style, hosted by the Brazil CM "family". Imagine staying in an artist's loft in France? or a pad from 1960's Avengers TV show in the UK (for that matter build the village from "the Prisoner!")? or attend a Bratwurst making class with the chef in Germany? I'd love the Casablanca feel of staying in Morocco. The guests over at China get to build iPhones and Nike Airs as a family fun activity. (Maybe not). You'd need to find the right number of rooms overall and it could all be serviced as one big hotel (by WDW) with many "wings" so it made operational/financial sense. How fun would that be?? When do they open? I wanna stay in Norway and go to the Troll Breakfast!