The EU Collector's Edition contains the following:
- The Tales of Xillia 2 game
- Collector's Edition packaging
- Ludger Kresnik figure
- Rollo metalcase
- Pocket watch replica compact mirror
- Special tracks selected by the dev team
- The Art of Tales of Xillia 2 booklet
Aside from the CE, Europe also gets a Day One Edition which includes the game, a different steelcase and the music disc:
No news yet on the US release date or Collector's Edition, but it shouldn't be that different from Europe's. And also no news yet on where the EU CE can be pre-ordered, but I'd think it'll still be at TalesofGame.com. Those in the UK can already pre-order the CE at Amazon UK, though!
Note that Italy will be getting the game on August 28th due to the holiday in the country on the week of the 22nd.