They just refurbished Royal Theater, I imagine this could come back at any point, as soon as the princesses stop meeting guests there.
The only thing we've heard about Fantasyland Theater is that it will now be the Lion King show, and should be back this year. The post on the disney blogs originally said spring of this year, but I don't know if there has been any update after that.
Hyperion has not a peep. Best guess is that it will return, but probably with a new show. Also, they will have to find a new place for the Pym Kitchen overflow, or that would be awkward.
Fantasyland Theater from Disney Blogs:
“Tale of the Lion King”
This spring, the Fantasyland Theater at
Disneyland park will become home to “Tale of the Lion King,” an imaginative adaptation of Disney’s “The Lion King.” A hit with guests when it debuted in 2019 at Disney California Adventure park, “Tale of the Lion King” is brought to life by the Storytellers of the Pride Lands, a troupe of traveling performers who present Simba’s beloved and timeless journey in a unique story-theater style with live music and dance.