Probably nothing, for the time being. DAoC has aged remarkably well, although it has to be in a zero-growth situaton. I place a lower limit on its continued lifespan of a year and a half, and it could easily be two or three times that, depending on how great the abandonment rate is. I have no idea what kind of development team DAoC retains, but it’s probably small, and likely to get smaller some time in the next two years, as BioWare decides to go with the bigger moneymaker that is WAR, and sees DAoC as a distraction from their priority project, which is SW:TOR.
In any case, DAoC is doomed. But not neccessarily to any greater extent today than it was a week ago. Mythic alone was just as likely to make a decision to cancel it as BioWare will be. I’ll be surprised if it’s not still around a year from today, but I’ll also be surprised if it’s still here two years after that.