Is Gossip Girl just going to be incredibly boring next year? After all, our hero, Blair, appears to have everything she wants... an Ivy League pedigree, well-behaved minions, and a rich, handsome prince about to sweep her away to a life of fame and luxury. As social climbers go, she's peaked. But not so fast. It wouldn't be Gossip Girl if there weren't a catty, couture-clad wrench in the works. This year's obstacle will be none other than Blair's future sister-in-law.