Chuck will be more SF
At the Chuck roundtable interviews at Wondercon, Fedak told us we'll see "more of the scifi side" of Chuck. In the recent episode "Chuck Vs. The Suburbs," you saw a bit more of the "scifi underpinnings of the show," including the secrets of the Intersect, the super-spy database that's downloaded into Chuck's head. "That kind of rabbit hole, and that kind of mythology of how it works, we'll be getting further into it," said Fedak.
They showed a reel of scenes from the rest of the season, and it included tons and tons of Yvonne Strahovski kicking ass in her underwear, lots of bondage and fighting, and Chuck squealing like a little girl. And what looked like a pole-dancing Tricia Helfer! And there are hints that evil spy organization Fulcrum is getting a lot closer to figuring out Chuck's secret.
via io9