According to the cast and crew, the Majin Buu Saga was supposed to be released sometime this year but was delayed for reasons unknown. Right now there is no official release date but my guess is sometime in 2014.
It says on both Wikipedia and Dragon Ball Wiki that the show will continue with the Majin Buu Saga in every other country (except Japan for some reason) so I don't know WHERE you're getting your information.
i think that they decided not to because the Majin Buu Saga has too much innapropriate scenes in it like when, i think it was, Majin Buu hit Gotenks in the forehead and he does something slightly innapropriate. but i do want the Majin Buu Saga to air on Nicktoons too, mostly because of Supreme Kai and then Kibito Kai with the Z Sword and the Fusion and all that awesome stuff. but yeah i think it might be because of the innapropriate scenes in that Saga
The Majin Buu Saga wasn't delayed, it was CANCELED.
Does anyone else read Wikis anymore?! You should- they give great knowledge. XD
PS: You may see my posts on the Legend of Korra boards also...