I've found this interesting interview, which sheds some light on Fuller's immediate plans for the remaining 9 episodes of the season, and why the series was cancelled in the worst moment possible! He also talks about the comic book, and some things he says makes the comic idea make much more sense than it did before to me.
By the way, now I just hope any of our American friends will make the comic available online for us overseas folks... It's not something we can download on surfthechannels...
http://scifiwire.com/2009/05/bryan-fuller-how-pushing.php