The new Ratatouille attraction in Walt Disney Studios Park with be called "Ratatouille: The Totally Crazy Adventure of Remy". In French it will be «Ratatouille: L'Aventure Totalement Toquée de Rémi»
And here's the first visual.
©Disney and respective owners.
Edit: Adding the French title. I guess the abbriviations will be RATTR (Fr) or RTCAR (En). I think I'll stick with Remy.