Cannon dismissed the case due to Jack Smith being improperly elected to be a special prosecutor. It’s one of those rules that exists on the books yet isn’t actually followed by any congress or president.

So it’ll likely get appealed to the 11th circuit. Best case scenario they would say "go get a properly elected special prosecutor." Since congress is majority Democrat, they could easily vote in Jack Smith as a special prosecutor.

If this is what happens, the case will get retried and a new judge will be selected to restart the case. It’s possible we could get Cannon again, it’s up to random chance and her name is still in the pool.