On what's coming up for Chuck&Blair and Nate&Serena!

This season of Gossip Girl has been all about shaking things up and while it's been entertaining, I hope I'm not alone when I'm wondering: when will Chuck & Blair and Nate & Serena finally get back together?

Question: Any chance of Blair and Chuck getting back together on Gossip Girl? —Savanna
Ausiello: There’s a pretty good chance of it happening in the next couple weeks, but I have to warn you: It won’t be pretty. Think The War of the Roses meets lots of sex.

Question: I’ve had enough Chuck and Blair spoilers. Please tell me something good about Nate and Serena! —Ilaria
Ausiello: The former lovers attend Blair’s birthday party together, but as friends. Hey, it’s something. In other GG news, ‘memba the peace treaty I told you Nate and Serena get Blair and Chuck to sign? Well, Dan — who stands to benefit from B&C remaining at war — steals it.

Source: Ausiello Files