At Wizard World Texas in Dallas this weekend, Bob Wayne had this to say at the DCU panel, as quoted on Comics Continuum:
Asked if there will be a comic book based on the Legion of Super Heroes animated series, Wayne said "We have not announced doing a comic book, so when you hear about that, act really surprised."
Looks like Comics Continuum is the only one at this convention. Newsarama and CBR don't have any reports at all.
Haven't even heard any rumors about who's doing the writing or art chores on the book.