A graphic novel, you say? I'm not very interested into comics, but I do make exceptions from time to time and would be interested in this one. Any sense of what the story is about?
I'm hard pressed to see where else new enthusiasm for the show is going to be shored up. The DVDs have already been dropped in price to under 20 dollars. No new DVDs are on the horizon. All the script books for the series regular have been released (and been discontinued). There aren't any Babylon 5 computer games coming out. Any chance at a new novel line has been stalled, if not finished entirely. No more Lost Tales will be made. Chances of a movie that Straczynski has pondered are almost zero.
I imagine it will continue to bring in a small, steady stream of dedicated fans, but as far as great numbers of new viewers are concerned, Babylon 5 seems to have gone out to the pasture. It's not even regularly aired on any prominent television channel anymore.