There HAS to be another series because there is a retorical ending, atleast NBC should've told/made another series so we could've known if Sarah got her memory back.

There are other petitions out there which will do the same for this series. if you could sign my petition on this, i will try to show them and put them together, the other potition said that they will show it to NBC who really would love the other series of Chuck, so, if you could sign up. I would like to tell them to combine the two petitions together to show NBC 

(sorry im new to this, so.... I don't actually know how to do this, but we will cross that bridge till I come to it. if you do. thank you.