Phantasy Star Online 2 boasted some impressive user numbers late last year, but that's apparently not enough to keep the title from being delayed in the West.
Publisher Sega "can officially confirm that PSO2 has been delayed," according to Polygon. The game was originally given an early 2013 North American launch window. Sega says that it does not have "any specifics but will update everyone as soon as there are more details to share."
Phantasy Star Online 2 has been playable for over a year, and was even showcased at PAX Prime 2012.