While Chuck has still not been picked up for a third season, Josh Schwartz has recently informed reporters that the season two finale will at least change the show in a way that will satisfy viewers whether the show is picked up for a third season or not.
While Schwartz has previously strayed using the words "game changing" when describing the second have of season two of Chuck, Schwartz recently used those exact words at a group interview at WonderCon.
According to Sci Fi Wire, Schwartz told reporters that "It will end in a way that's going to launch the show into season three with a real—it's a game-changer. I think that it'll be immensely satisfying in its own right, but it also really, really launches the show in a way that, you know, we're already breaking season three stories and can't wait to start telling them."
After talking more about a potential season three, Schwartz went back to say about the season two finale, "This is our finale. This would be our finale whether we knew we were picked up, whether ... we were picked up for next year or five years. This is what we've been wanting to do for a while, and we've had this planned since the beginning of season one."
Plus if it makes you feel better, executive producer Chris Fedak will be pitching season three stories to NBC this week.