I hope you don't plan on working alone, an MMO is a massive undertaking. It's doable, but you might want to get some people together who match your vision and are similarly trained.
the original game was called an MMO, but basically you could see it as a Co-Op PvE game like e.g Payday and what not.
You do stages with 1 to 8 players, with a lobby system and what not. Its far fetched to call it an MMO, but it seems like the easy way to genre it.
I am planning on working alone, but am expecting to work on it for a long time. i will also keep it private for a long time of course. I don't think it will be too much of an issue as I wont come under much stress and deadlines.
