Add a scenario editor of some sort

I know previously you have not considered releasing a community map editing tool to make scenarios, new and unique island expeditions, etc., but I think it would be a great idea to do so. It could be something like the Steam Workshop but making it more user friendly (ex. being a button in editor that posts it to the new workshop).
It would be interesting if wow could run these maps just from people downloading them from that workshop and running them in a group. People can vote on what they like the most, and the ones blizzard likes best is ones that blizzard can polish and add to the game. Revives a game mode most people dont really play outside of the ones for quests, makes the design process easier for the external level designers, and gives creative people who want to give the wow community something to play and enjoy a way of doing so without breaking ToS.