For what it's worth re: the possibility of future Chucky attractions, that merch illustrates my point re: the rights Universal has and doesn't have. Whenever they use "plain" Chucky, they reference Child's Play 2 or (in some cases going forward, probably) the Chucky TV series. If they use stitch-face Chucky, they reference Bride of Chucky. Universal controls Child's Play 2, 3, Bride, Seed, Curse, Cult, and the series. They do not control the original film or the remake with the "Buddi" doll.
With all that said... I think the current creative team got Chucky out of their system with the "Revenge" zone a few years ago. They may not be itching to reuse many of the same visual ideas in a maze so soon, even with the synergistic opportunity the series presents.