26 February 2010,
Huge SPOILERS from Ausiello at EW.com:
My Buy More mole just tipped me off that Josh Schwartz is casting younger versions of Chuck and Ellie ( 7 and 11, respectively) to appear in a flashback sequence in Chuck’s season finale. No other details were provided, but I spy a connection between this and Scott Bakula’s return as Bartowski patriarch Steve. Also, if you recall, Schwartz recently declared that Bakula’s Chuck comeback arc would be “the biggest thing we’ve ever done on the show.”