The First Toy Story 3 Toy Story
For a while there, it was unknown if Disney & Pixar could reach an agreement and since Disney owned the rights to the characters, Disney planned a third Toy Story without Pixar. Fortunately, cooler heads prevailed when Robert Iger took over at Disney and bought Pixar outright and bringing John Lasseter back into Disney.
You can see some of the concept art and the story at ComicBookMovie.com.