This news is already spreading fast : a CNBC article about Toy Story Midway Mania was spotted quoting a new Ratatouille attraction for DLRP.
[...]There's no question that Pixar is an increasingly important driver of Disney parks. The last big attraction Disneyland launched was its "Finding Nemo" Submarine ride last year, it's working on a big "Cars" attraction for Disneyland and a "Ratatouille" ride for Euro Disney outside Paris. All these rides further proof of the fact that Disney's acquisition of Pixar was about much more than just a movie studio, it was about building brands to exploit across all its platforms, which is CEO Bob Iger's big strategy.[...].
i'm doubting the veracity of the words of a journalist who still calls Disneyland Paris Euro Disney, 13 years after the name change... Maybe they're just taking the rumors for granted.
Anyway... Now it's in the press...