Board Thread:General Discussion/@comment-26337668-20150523134701/@comment-995426-20150621212103

I remember how Nickelodeon abruptly put Kung Fu Panda: Legends of Awesomeness on hiatus during its fourth season to make room in the schedule for other new TV shows. The later episodes have been made, but have not aired yet. And that hiatus has already lasted more than a year without any formal cancellation.

So yeah, if Nick unexpectedly puts TMNT on a really long hiatus, it wouldn't be the first time they've done that kind of thing.