My bro is a CM and got to walk around the TSM site. This is simply what he said......
Toy Story MANIA! does not have any preshow other than the potato.
The ride starts where the queue starts under the large building
Theres no real queue detail.
The interior in no-way represents the exterior, the interior looks just like old DCA midway with the metal signs and cheap yellow-red color scheme and look. He said its gonna be a decent ride and the real signs of DCA 2.0 start with Mermaid. =/