It is being strongly speculated that a Monsters Inc show will replace the former Timekeeper show. The new attraction is rumored to be based on similar technology to Turtle Talk with Crush, allowing live interaction between on-screen characters, and guests in the audience.
The photo below shows the construction wall sealing off the former Timekeeper attraction. The Imaginers at Play sign is the only exterior hint that something is taking place inside the building.
Please note, that the future of the Timekeeper replacement attraction has not yet been officially confirmed by Disney.