The Hollywood Reporter is reporting that Johnny Depp will be in Wes Anderson's next movie.
No details regarding the film's plot or Depp's character have been revealed, but the project is said to be titled The Grand Budapest Hotel and will mark Texas-born Anderson's first time shooting in Europe.
A bunch of Anderson regulars are also rumored to be involved: Bill Murray, Owen Wilson, Edward Norton, Jeff Goldblum, Adrien Brody, and Willem Dafoe. IMDB has it listed as Untitled Wes Anderson Project, described as "a European story", and Owen Wilson is the only listed cast member.
Update: I am reminded, via Twitter, that Anderson has done several projects in Europe. The Life Aquatic was filmed in Italy, Hotel Chevalier was filmed in Paris, and Fantastic Mr. Fox was produced in the UK. Anderson lives in Paris full-time now, I believe, so I would expect that many of his projects moving forward will be filmed/set there.