Zelda is pretty flexible as a franchise. Same E3 they showed a trailer for LA remake and how cute it was and the tease for ToTK with how frightening Gannondofs corpse was. They can make something that doesn't have to one-up Totk in scale just a new mechanic. Tho yes that alone can be tricky but they often seem up to the task. If they have some form of RT in Switch 2 they can find a creative mechanic around that and story reason. Not worried about them finding a new idea.
I would like one thing from the BOTW Hyrule before they move on tho. Hyrule rebuilt and get to visit Hyrule Castle and Castletown in a nice state. Now that both games deliver on the surreal end-of-the-world aspect.