I would love for there to be a Draconeon! It is the only 'special' type not already taken by an eeveelution. I also would like to see physical type ones eventually!
I'm going to speculate that the potentially filler Axew episode will be redeemed by an evolution. My first guess would be a double Axew/Scraggy (Scraggy appears in the episode) evolution, perhaps the both evolve to beat two nasty Pokemon in a double battle or something. Other than that Oshawott is a possibility as it appears in the episode. It could potentially be that Snivy or Pignite evolve here or even Boldore. Palpitoad is not a possibility as it appears as a Palpitoad in the next episode.