Kickstarter: Neat.
Video Game: Nice.
Runs on Mac: Snazzy.
MMO: Nope.
I can't stand MMOs. I buy a game to own it and play whenever I feel like, not play for the few months/years until the people running the servers get bored, or the company gets bought, or whatever. I've paid monthly sub fees to two different MMOs and watched them both go down, and everything just vanish. All the fun, all the effort, all the good times and bad times, all the everything just *poof* gone. Even though they could have easily, easily been sold to another company, or even switched them into single player games! City of Heroes/City of Villains had a base game that you could solo for probably 60-80+ hours! With massive replayability! And instead they just trashed it all. So, no, not interested. Bah humbug.
Sorry for the bad vibes, I do wish them the best of luck getting funded. Just personally not into them.