So, the default MMO acronym for Pathfinder Online is PFO? Am I the only one who thinks this is funny? Back when I was in college, PFOs are what my roommates and myself would call the little bits of correspondence one would receive from a company when the bid for a summer internship or full-time job was rejected, politely.
Personally, I see the MMO Pathfinder pretty much as a wholly separate entity from the PnP Pathfinder that are linked merely by IP. Some people will be drawn in by the MMO, some won't - and some will hate the idea. That's fine, and healthy. No one would want all their hardcore PnPers to ditch the PnP model for the MMO, or vice versa. My assumption is that there would be more cross-pollination than desertion. More importantly, it appears that the fate of Pathfinder is not tied to the fate of the Pathfinder MMO. Because it appears that Goblinworks will be for the most part separate from the PnP side of things financially, my greatest concerns are alleviated. In some cases, even a flop MMO (say, WAR) can generate interest in the PnP version -- at least I've seen it happen. I say, good luck! Someone needs to do a fantasy sandbox MMO right, might as well be Paizo/Goblinworks.
As a casual gamer, I do have one shameless request: please remain true to the partial free model. Some of us don't have the time to justify a MMO subscription, but are more than happy to throw a few dollars the company's way via microtransactions or whatever (like LOTRO) on occasion. I assume I'm not the only MMO dabbler out there.
Also really liked what Steel_Wind had to say on the MMO subject.
Anyways. Best of luck to you. I hope it's successful.