My recommendation is to have one story to rule them all . Ok ok ok...I will explain, I believe Allen had a pretty good build up to how he wanted everything before life got in the way. Have a story that interprets all the characters emotions, feelings, wants/needs in the ongoing transgressions with Anubis/Creators/Earth forces and go from there. Once you have that story, you can then write your continuation for GWOTG.
I use to work with Allen in the shadows from time to time, datafiles and views on story lines. Even though it has been years, I could potentially voice opinions or story lines for the site to continue.