User blog comment:Darthmaul252/Episode 25 expectation/@comment-179280-20130924192941

Well, the anime was created solely as a big commercial for the manga. It would be stupid if Episode 25 was totally different or didn't connect to the story of the manga to begin with. Like, if ending with a Gecko ending, will make sure most fans don't even consider the manga (because let's face it, most Shingeki fans only watch the anime).

Also, whatever way the anime ends, we still have Ilse's OVA in December, and that's a good way to keep feeding the fans: releasing a few OVAs over the course of a couple years until they are really ready to make a continuation for the anime.