Ned's Declassified High School Survival Guide (lost rejected pilot of Nickelodeon spin-off TV series; 2008)
Exactly a year after Ned's Declassified had ended, Devon Werkheiser had signed on to a development contract with Nickelodeon to star in a high school spin-off of Ned's Declassified School Survival Guide unofficially called "Ned's Declassified High School Survival Guide" that, as the title implies, would follow the character's adventures in high school (or perhaps just Ned Bigby). According to TV Tropes, Werkheiser said a pilot was shot, and on his blog, he stated that it was in progress and that they'd know if it got greenlit a couple months later.
However, the show hadn't been greenlit by Nickelodeon, and it has stayed that way since. It's unknown if any of the other actors were slated to be on the show and Devon himself confirmed on a long deleted Youtube video that there would definitely be no continuation of the show. Either way, the original pilot hasn't been released in any form.