Disclaimer: I have zero connection with OrbusVR and this isn't an official endorsement by me, or the company, in any way. Just a helpful link.
OrbusVR is a planned VR-only MMO that's currently on Kickstarter (you can see the pitch video above). Speaking entirely as a gamer, fantasy fan and MMO person, it's good to see a project like this succeed (or at least, gain funding - they're over 2x of their original goal right now).
Anyway, take a look if you like. There's a short window on this - the campaign finishes on March 13th - so don't dawdle. Here's the Kickstarter link.