Yeah and apparently a Toy Story 4 has been announced on a tentative schedule of 2017 with him once again voicing Buzz Lightyear. Wonder how that's going to work but to quote the reason for making it on Wikipedia:
Toy Story 4 (2017)
Toy Story 4 was announced by Disney during an investor's call in November 2014, tentatively scheduled for theatrical release on June 16, 2017. Lasseter will return to direct, while the screenplay will be written by Rashida Jones and Will McCormack from a story by Lasseter, Andrew Stanton, Pete Docter and Lee Unkrich. Galyn Susman will produce. Lasseter has hinted that Toy Story 4 will be a love story and will pick up where Toy Story 3 left off. According to Lasseter, "Toy Story 3 ended Woody and Buzz’s story with Andy so perfectly that for a long time, we never even talked about doing another Toy Story movie. But when Andrew, Pete, Lee and I came up with this new idea, I just could not stop thinking about it. It was so exciting to me, I knew we had to make this movie—and I wanted to direct it myself."