This most likely won't happen but what if when facing Team Rainbow Rocket you bring the help of ORAS Archie and Maxie or May and Brendan to fight off the RSE versions, Dawn, Lucas, and Cynthia to fight Cyrus, Hilda, Hilburt, and N to fight Ghetsis, and Calem, Serena, Trevor, Tierno, Shauna, Dexio, and Sina to fight Lysandre, and Red and Blue to fight off Giovanni and his Mega Mewtwo.
I'd LOVE to see the original protagonists from past games come back to help you battle. That would be like, the ultimate love letter for 21 years of Pokémon. Please let this be a thing TT
Wally. Wally on your side to fight Maxie/Archie. Just imagine. That's all I want right now. And a chance to apologize for beating him I feel like an awful person #MissingNo