I believe the author(s) has comics lined up for some way into the future, certainly explains why they're comfortable to have such a high update rate. Incidentally, it looks like Shelby is all set to play the same role for the main party that Toph played for Team Avatar in the show. A different take, certainly, and an interesting one, but her main role looks to be to shake the three out of their comfort zones. Also, the Zuko Alone session was fun, I'm curious as to what Rube is trying to push Damien toward at the end of it, though.