Attack on Titan was originally rejected because it was too abnormal for Japan?
That just makes me love it all the more.
Also, in the spirit of fan speculation, I'd like to ask something. WHY do you think the titans are?
I believe I already know what the titans are. They're weapons created for a purpose. I don't know what exactly they're for though. Eating humans may just be a means to an ends. The behavior of the wall priests suggest they have some idea what this purpose is and that they consider it more important than the survival of the city. We haven't seen the wall priests do much apart from creating red tape for tamepring with the walls, which contain 50 meter titans. The existance of this class suggest that at some point, someone held control of these titans long enough for the walls to be built. The wall builders made three walls, suggesting they knew that they'd be brienched eventually. I'm guessing that this is a bit like Matrix 2 where what we think is our greatest hope is actually just an extension of the enemy's control over us.
I don't think the appearance of the titans was as sudden as the story suggests. I think humans created the first titans, possibly even the sasquatch, and this is all part of their plan. Then there's the revelation in the latest chapter that the latest human titan had been a regular titan for 60 years before somehow turning herself back to human. The titans seem to want her back and even take precautions to make sure they don't kill her by accident, at least not while she's human. Regular titnas seem to have an intense hatred of human-titans in titan form; its the only time they stop smiling.
Then there's the social commentary about the corruption and unfairness of society. That has to play some larger role in all this. I'm betting that the titans' goal is to somehow make a better humanity.
I don't mean becoming like the titans because titans are just mindless tools. The manga talks a lot about social corruption and that one mustache commander talked about a legend of if humanity faced some overwhelming threat that it would lead to them uniting. I think that unification is the goal, not a physical evolution.
Titans were used in making the wall. That means that although the titans could have wiped out humanity all at once, they chose to spare some. And the behavior of the wall cultists suggest they don't necessarily want humans to die, but they're unwilling to give information because they feel we could actually do something to affect whatever grand scheme is going on. And, I think her name was Ami, the female titan's flashbacks suggest that they're doing this for some greater cause.
now if Disney or nickelodeon could understand that wed have a decent tale for power rangers instead of unfortunate crap like m