This, along with X, Y and helix-logo thing.French Guiana is a part of France
Now you got me truly excited that the Mew and Mewtwo's plot will come back o:
As for the locations, I would really love to see the come-back of more demanding dungeons (remember the fun of pushing boulders through the holes back in First Generation? :D), but also more rewarding, with some side-mysteries to discover. A Legendary that we don't know about from the very beginning, anyone?