Monday's Gossip Girl is the mid-mid-season finale, according to the producers. In their weekly preview, Joshua Safran and Stephanie Savage reveal some interesting info.

In "Empire of the Son" ...

• The Dair story line continues to unfold.
• Ben's mother returns, as does Serena's dad.
• The entire direction of Lily's character will change.
• Raina finds herself torn regarding her feelings for Nate.
• Most significantly, a huge secret from the past, something that has been brewing not just for episodes, but seasons (plural) will be revealed. What could it be?!

Any thoughts on what that mega-bomb will consist of? How do you predict the show will leave things regarding Dair and everything else up in the air? Comment below!

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