Lots of ways to do a spin off from this campaign and still make it fresh. I'm not overly attached to my character so a fresh start is fine for me as well.
Maybe start working on a new campaign page, copy and paste information from this one over to that one, and then let this game go to archive (so that it at least still shows up in play history for everyone).
I have quite a few digital modules that I can send your way Riku. Just let me know what level you are considering running at (maybe stick with 6 if you want to have a character or two from this game translate over to the new one). Then decide if you want to stick with a villain campaign, or go more heroic, etc.... Then send out invites to any of the players you want to keep from this game and throw up an ad if you are still lacking players.