See here for more details.
No wonder why the Japan Expo in France was kinda lackluster this year (compare the list of guests to last year's list of guests, you'll see what I mean).
Anyway, for a first time, the American incarnation of this convention starts with a big impact (pun intended here, kinda).
As a lot of people here aren't from the American continent, I don't think we will be able to sort of "cover" the event, but whatever. We'll maybe get some informations about Evangelion: Final and/or the release date for the manga's fourteenth and last volume.
EDIT: Here is in an interview of Sadamoto. Some interesting details about the manga and his participation to the chara-design of Wolf Children.