We pretty much knew this already, but in case it wasn't confirmed 100 percent before, it now is, thanks to TV Guide. Michelle Trachtenberg has not been promoted to a series regular on Gossip Girl. She will, however, be guest starring this season.

The Season 2 finale indicated that Georgina would be enrolling at NYU with the gang.

But Trachtenberg's fall run on Gossip Girl be brief, as the actress' other show, the NBC nursing drama Mercy, has just been moved up from midseason to fall.

With Mercy rushed into production, Michelle Trachtenberg will be preoccupied.

However, don't be surprised to see her making periodic vistis to the Upper East Side throughout the life of the series! Hey, a little G is better than nothing, right?

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.