This is EA, they are not a charity.
If UO dips below a certain point, they will simply end it. They've made plenty of money from it over the years and it's quite clear that EA has no sentimental attachments to anything related to Origin. They even let the Ultima name be dragged through the mud with that "Lord of Ultima" crap. EA has a history of killing games and franchises, both online and offline, that fail to generate the profits they want.
UO loses staff members when other games lose money, even when UO is making money. EA does not care about UO as much as some think they do. Look at Warhammer - it sank like a rock, and EA gutted its staff, along with UO and Camelot even though those two are profitable. Warhammer sticks around simply because they invested so much into it that they are trying to recoup some of those costs. Not so with UO - it's made its money back time and again. Warhammer probably won't survive the launch of Star Wars.