On the fittingly green carpet at the CW upfronts, Leighton Meester couldn't wait to share her thoughts on the future of Chuck and Blair, while co-star Blake Lively weighed in on Georgina's return to the show next season.

When last we saw them, Chuck was showering Blair with her favorite treats and, more importantly, finally saying the three little words we waited so long to hear.

But alas, can Chair really work in the real world?

"Chuck and Blair holding hands, Chuck and Blair going to the movies - isn't that what he says would be unrealistic?" Leighton Meester asked E! Online.

"I feel like a tumultuous relationship is a-brewin', but that's what drama is."

The actress, who recently went blonde for her new movie, The Roommate, but promised to go back to brunette ASAP, says she isn't sure what she hopes will come for the fan favorite couple when the show returns August 31.

"I want us to see them together, but at the same time, the reason why they're so good is why they can't be together," Leighton Meester says.

Unfortunately, both Meester and Blake Lively agree that Georgina Sparks' return could cast a long shadow over Chuck and Blair's future.

"Chuck and Blair are finally together, but yet Georgina is back to screw up her life with that major vendetta," said Lively of Serena's frenemy.

Despite the cliffhanger conclusion, whether or not Michelle Trachtenberg will be back on the show full-time remains in question. The actress has been cast in a new series, Mercy, a nursing drama that NBC recently picked up.

Another big challenge ahead for our favorite Upper East Siders may be higher education: "A few other people are going to college," Meester says.

"I don't know if they're going to stay."

Speaking of college, Penn Badgley said that Dan Humphrey's half brother, Scott (Chris Riggi) might be up to no good with his sneaking around New York.

"He's gotta skulk... He's a Humphrey," Penn predicted.

Speaking of Humphreys, could Dan be coming around to the idea of Nate (Chace Crawford) getting with Little J (Taylor Momsen) for real this time?

According to Penn, "He should. Nate's a solid dude."

Is Dan done thinking that Jenny's too young for Nate?

"Probably not," says Penn. "But I personally think that Dan should relax. Dan is too uptight."

Last but not least, in addition to more Georgina and Rufus-Lily spawn in season three, there is one indisputably awesome character we can promise will be getting plenty of screen time:

Countess Dorota (Zuzanna Szadkowski).

"I think she's going to be around a lot more next season," says Leighton.

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