I mean, other forms that weren't shown yet. Coz I don't think Slowpoke and the bird legendaries are going to be the only ones.
Expecting more Kantooooo, so from the Kanto Pokemon that aren't ingame yet, maybe a Pidgeot or a Primeape would be cool, as for what I would like, something for a Pokemon with only one stage would be nice, maybe Kecleon or Dunsparce, but give them an actual evolution, don't do what they did with Corsola and Farfetch'd which even though the new ones are cool, the old ones were just ignored since they didn't actually get an evolution, the variant did.