Kaiju Cinematic Universe

A five-way collaboration between Studio Ghibli, Toho Co. LTD, Tsubaraya Studios, Kadokawa Pictures and Universal Studios meant to create an animated shared universe between Godzilla, Gamera, Ultraman and King Kong and several other creations.

Development
Ghibli announced after the release of Rebirth of Godzilla that they had received the rights for not just Godzilla, but also for Gamera, Ultraman and King Kong and that they would be working very close with the companies who own the franchises.