Well, according to Wikipedia it would be airing between Fall 2013 and Spring 2014 Link >> link So I guess we all have to wait. (especially me! I live in Latin America people -_- but who cares! I'll watch it in english :3 )
Actually, last time I checked, it was supposed to be schedualed for this summer. They sagte that it begins on the Monat of June to September with the first 13-14 episodes. Then the Weiter 13-14 were supposed to have some newcomers, which I find rather stupid.
