Fallen Angel is ending with #20, and Babylon 5: The Memory of Shadows has fallen through.
However, JMS has always said, "If they can do a Brady Bunch movie, you can be sure that sooner or later, somebody’s going to do a B5 movie." Even better, it turns out that while Warner Bros. owns the B5 TV show lock, stock and barrel, JMS owns the movie rights…so he’s in a position to make sure that whoever does do a B5 movie will get it right. "To that end," he says… "I can wait."
As for Fallen Angel, I suspect the timing of the decision means DC either wasn’t waiting for sales after all, or was going on pre-orders from stores. Peter David cryptically remarks, "We are not, however, quite dead yet." It’s not clear what he means, but the characters are creator-owned, and the series isn’t tied to the DC Universe, so it’s entirely possible for them to pop up again at another publisher. Only time will tell.