Now here me out. Every MMO I've played has made me play as a humanoid. I don't know if there are MMOs that let you play as anything else at all, unless you count playing as a ship in EVE Online or STO. But I want to be something more.
Let me be the dangerous predator in the night. Let me soar above humans, breathing fire and striking fear into their hearts. Let me swoop down and snap a humanoid in two with my jaws. Let them form raids in a pathetic attempt to destroy me. Let them try to unseat me from my hard earned pile of treasure. Let me be the terror at the end of the dungeon.
The idea of switching around the roles of Player Characters and NPCs is simply fascinating to me. There's a lot of untapped potential in different roles yet to be explored. I hope someone decides to explore it.