I don't really think it's quite that dire. The company isn't going to go under if FFXIV fails, they're just going to have drastically adjust their overall business strategy. Dragon Quest is still bringing in loads of money, and the various developers they've acquired the past few years for whom they publish titles have done well for them. I would just expect to see a big cut back on ambitious in-house projects. Significant lay-offs. Fewer titles per year, and safer ones (i.e. Kingdom Hearts, Dragon Quest, Final Fantasy pillar IPs only).