Sadly, no word or rumor or nuthin'.
Occasionally, a Google search for "El Cazador licensed" will cross my referrer logs, and now and then one of those would be from Houston (home of ADV), but considering the issues the industry is having -- and ADV apparently losing (or giving up)
Gurren Lagaan -- the likelyhood of a title that didn't quite generate the buzz that it's spiritual predecessors did (and the rumors that MADLAX didn't really do very well in sales) is probably not on the list.
Plus there's the "dude, she's 14" problem...
