My two cents:
UO is dead, as far as the market is concerned. Not just dead, but long buried. A lot of the funeralgoers are still standing around the gravesite.
I'm not saying the game isn't fun, doesn't have potential, and still doesn't offer a lot more of a lot of things than other mainstreamized, more recently produced games do. I'm saying that its time in the market has come and gone. Stygian Abyss or not, as far as most players are concerned, UO is some smalltime oldschool MMO that went the way of the dinosaur ten years ago as far as being a major name in the market. It is typical for MMO gamers today to not even know the name. That's cold, hard fact.
Look at what EA produces.... I think the only reason UO is still around is because even a virtually depleted MMO is still essentially profitable. The actual hardware to run it was long ago purchased and paid off. The costs of actually maintaining the services are nominal compared to the income a player base the size of UO's can provide. (People forget but, UO even at only 150 or 200 thousand accounts was once the largest and most successful MMO ever to have existed, so despite its low numbers compared to WOW, it certainly more than pays for itself and kicks a nice profit boost into EA's coffers.) My guess? Most of the money is already preappropriated for other, non-UO projects before it even comes in each month. And even if it's not, most of it will simply be used to help pad the already reported poor and suffering new game projects/sales this holiday season in the down economy. To think that most or even a substantial amount of UO's revenue is somehow sacrosanct used only to reinvest and give things back to UO players in terms of content and service by EA is..... I think, wishful thinking. Despite no doubt losing a ton of money on yet more mainstream casual gamer junk projects and template formulaic mass market appeal games in the last six months, most if not all of EA's revenue I'm sure will continue to be diverted into projects with potential for major new growth. Which, for many reasons (some rational and simply fact, like the very aged game engine, and some perhaps arguable), both EA and the market consider a dead-end in UO's case. There is not really potential for major new growth. Only potential for stop-loss and retaining existing subscriptions, IMHO.