Do you think Ahola Raichu could possible be Pikachu/Ash's fusion form?

When I saw a new preview of Pokemon Sun and Moon, I think Ahola Raichu is the most cutest thing in Pokemon's history.

I have a theory that Ahola Raichu could be Ash/Pikachu's fusion form in the upcoming anime,because I don't think Greninja won't stay with him much longer and Kalos is ending soon. I think that would be cool that Pikachu decides that he want to become Ash's new fusion partner if Greninja didn't go with Ash to Ahola and stays back at Prof. Oats' lab and probably Pikachu will do it out of kindness from his heart,because he's Ash's closest pokemon and he has been with Ash the longest than Greninja had