The suggestion that Andy could return in Toy Story 5 may not have been universally popular, but it could open the possibility of one of the best Pixar fan theories becoming canon. Every Pixar movie inevitably becomes the subject of multiple theories, partly because the studio adds layers of meaning to their stories. Far from being purely for children, every new Pixar movie and TV show explores issues as deep as identity, mortality, and human endeavor. It's never just been about talking fish and cars with faces.

https://screenrant.com/toy-story-5-andy-mom-jesse-owner-theory-canon/