Xenogears, too. The original came out in 1997 and Xenosaga was released in... I want to say 2003. Lots of games, particularly roleplaying games, drop off the radar and come back more than five years later.
All in all, I'm encouraged by the fact that this Surfer Girl person has apparently been told that Skies II is "in development," because I don't know why that would happen if it was not. It is by no means a guarantee of release anywhere, let alone in the States, but it is a step in the right direction.