Are Gossip Girl's Blair and Chuck back on?

It's too soon to tell, obviously, but we'd hold off on ordering anything off the wedding registry. If the palpable chemistry between the star-crossed couple in the photo below is any indication, Prince Louis indeed has reason to worry ...

This photo was taken during a Gossip Girl shoot in New York on Tuesday. It's unclear what scene was being filmed, but what is clear is that Chair is far from over.

The last two seasons have ended on a bitter note for fans of the pair.

Season 3 brought them within minutes of happily ever after, only to have B arrive late, and C ruin everything by sleeping with she-who-must-not-be-named.

Season 4 saw Chuck make a last ditch effort to woo Blair away from her prince, only to pull a 180 and give the couple his blessing at the concluding moments.

What does Season 5 have in store? You tell us in the comments!

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