Do you think Ash will return?

They can do it and they did it in Unova (oh, how horrible that was, I do not understand why so many people love Unova and Iris, maybe it is about the games), the champion of Orange Islands and a semifinalist of Hoenn championship does not know how to catch a pokémon (after teaching it to Serena and Dawn!).

It was pain to watch.

They did something similar in Alola too. I remember seeing a post somewhere about how Ash searched for data in Hoenn and how in Alola.

The point is, they sure can make Ash a newbie again. They already did it twice. It is not something I would like to see happen again, though.