I always overthink things like this but heres what I want:
New Pokemon I'd like to see:
Killer Whale: Water/Dark or Water/Ice.
Tiger Twins: [White Tiger - Ice/Dark] V.S [Orange Tiger - Fire/Psychic].
Two tigers evolving once each into larger versions. Each has a type that the other is weak against.
Komodo Dragon: Poison/Fire or Poison/Dragon.
3 Stage pokemon that starts as a plain Poison type, but evolves to acquire another type in its third stage (like Nidoking/Nidoqueen).
Frilled Lizard: Fire/Grass.
Leaf like scales with a tail that is seemingly on fire like this:
Rockhopper Penguin: Ice/Electric.
3 Stage pokemon. Ice because of where the penguin lives, Electric because this species of penguin has yellow eyebrows lol.