Depends on if you think Lilly may be in the CT which would make sense if the anime keeps the ultra wormholes. A-Ninetales is soon, and CT(?) is soon too, nothing suggests a Alola visit at the moment + the writers rarely give Goh evolved Pokémon.
I think Snowy is more likely.
Though if he does get A-Ninetales, I wonder if he will get a member of every Alola variant line?
Shellos-west, Igglybuff, Cleffa, or G-slowpoke
Fortress, Shieldon, Bronzer, Wormadam trash coat
Growlithe, Rockruff
I don't think he'll get a pika-clone, but I think Dedenne would be the most likely. A-Raichu seems more possible.
First UB: Poipole, Kartana, Buzzwole
First Mythical: Shaymin, Manaphy, Darkrai