Well - not quite Harry Potter in length. As I said, 250-400 pages or so. If you figure your typical 250 page YA novel, that translates to something less than 26 episodes on screen. Some of the later books appear to be a little more epic in length and scope.
Baka-test is a light novel series - a very good one, but just the one I happened to use as an example. These are small, relatively short paperbacks meant to be read on the train or the school bus, generally.
As for the novel translations, as far as I know Scholastic has bagged it after two volumes. I suppose they might change their minds, but I don't think it's too likely, unfortunately.
Message Edited by Chagum12 on 04-01-2010 10:00 PM