Here's an interesting tidbit about Gossip Girl that I read recently in a NY Mag article:
GG executive producers Stephanie Savage and Josh Schwartz have confirmed that the castmembers will actually go to college next season. No Senior Year Part 2 (*cough* Beverly Hills 90210) and no skipping that phase entirely (One Tree Hill).
"One of the problems with 90210, for example, was that their stage was high school. We feel like ours is New York."
The two also pointed out that there's plenty of college options in NYC.
Some other tidbits from the same interview:
Kelly Rutherford's (Lily) real-life pregnany will not be written into the show.
Be on the lookout for new character Jack Bass, uncle of Chuck.