User blog comment:Gourgeist/Shingeki no Kyojin Chapter 66 Review: Wish/@comment-26004142-20150215140605

I have to say, I did initially call that Historia didn't transform. I'm a bit disappointed that it wasn't Frieda transforming through Eren's body, but oh well.

Anyway, the most interesting part of this issue was the fact that Rod Reiss had a bottle labeled "Armor - Braun". This further confirms my original theory that there is another Reiss family line living outside the walls. My guess is that the people who live outside the walls are a group of people who did not agree with the original Reiss king's philosophy and chose to remain outside the walls.

Annie didn't eat Eren when she had the chance and now we have the essence of Braun in possession of the royal family. It's not not a stretch to understand what is going on. My guess is that there are families who are not affected by the Coordinate and who live outside the walls. They've passed on their titan powers to their children like the Reiss family has done and finally decided to attack 100 years after the walls went up.