I hope Ash to catch Psychic and Fairy type Pokemon. I know Ash has Mr. Mime, but it is mostly taking a role as housekeeper. So, I want Ash to have Psychic/Fairy type Pokemon which he can actually use it for battle.
I also want Ash to catch Marshtomp, but it kind of bugs me its appearing episode is only half-episode. So, it may become just recurring character and going to be capture later (like Gengar and Krookodile).