Theres is a rumor out from Mousetimes that there was a "we're imagineering a new attraction" sign on the PeopleMover track but it lasted only a few hours around Feb. 11
Here's the linkBREAKING NEWS:
Rumor has it, a sign went up today that says "We are Imagineering a New Attraction" at the Tomorrowland entrance in front of the glass of the peoplemover track.
EDIT: Apparently it was only up for a few hours, and now its down. Haha