On the UO U.Hall forum, Binky (Online Community Manager, All Things Ultima) made the following announcement regarding UXO:
Today, the decision was made to discontinue the production of Ultima X: Odyssey. This was done in order focus resources and talent on Ultima Online, the upcoming expansion, and an unannounced Ultima Online project.
“With Ultima Online thriving, and with plans for its future taking shape, we made the decision to focus all our resources on that game world,” said Anthony Castoro, producer of Ultima Online. “We look forward to making more exciting announcements about Ultima Online very soon.”