According to Media Factory "Zero no Tsukaima Kessakusen, recap of previous seasons, is airing in October. The 4th season won't be shown until 2012."

It's true, check it in moetron.com...

It's only a recap, but I'm still happy because there's Zero no Tsukaima again....
(Hope it doesn't be as bad as the 2nd and 3rd season):ml02:

wow,really?cant wait for it,though its already end at season 3,what was the season 3?i forgot,something like princess no rondo,if im not wrong,also no wonder at season 3 its seem like not the ending of all

Oh cool. I thought that anime was okay but I'll still watch it.