User blog comment:NickFusi0n/A Theory on The Coordinate and The Wall Titans/@comment-3074300-20140601195710

So after a long thinking, I finally put together most pieces of theory that we have. I am going to put it blunt and simple without much details.

But first, the things that are missing:


 * The Beast Titan's method of transforming humans


 * Who/what the Beast Titan is

What I put together (sorry if some things are obvious)


 * The Beast Titan is from outside the walls


 * The Beast Titan turns humans into titans


 * The Beast Titan is the very first titan


 * Grisha turned Eren into a normal titan with the injection, then let Eren eat him, giving him his Shifting ability


 * Grisha is a Titan Shifter and a relative of Lod Reiss


 * Grisha later changed his name to avoid getting caught


 * Eren is a Reiss. Both he and Historia had the vision/memory of the Mysterious Woman. Historia refers to her as her sister. Plus, Eren's eyes, the Mysterious Woman's eyes and Historia's eyes look very similar. Besides, how can they both have memories of the same person who looks very much like them?


 * The Mysterious Woman is currently with Lod Reiss


 * The Wall Titans, seeing as they have no skin, are most likely from the same hometown as Annie, Bertolt and Reiner


 * Annie, Bertolt and Reiner, and everyone else from their hometown are most likely not the enemy but instead are pursuing the government, not all of humanity.

I will update if I come up with anything else.