Maybe they'll do a cameo by Will Smith during sweeps!
Seriously, I wonder how long they can sustain this concept.... but then, Dexter's going into its 5th year.
As long as Kirkman can sustain the comic (which has been running since 2003 and doesn't seem to be ending any time soon), I would imagine.
Comics are a bit less expensive to bankroll than a t.v. series.
That said, I wish it lots of success!