>>55546434Not really.
I expect Zygarde will basically just be Zygarde, Xerneas and Yveltal will each get some sort of new form. Diance will be available (with its Mega evolution) if you have Scarlet and Violet save data on your switch.
We definitely won't see any major new legendary or anything, at MOST we might get an Enamorous situation, where they give us idk another legendary dog or something.