Board Thread:Manga/@comment-5774380-20170106232308/@comment-30632294-20170107001311

Or back in time. Which gives new life to whole "See you later, Eren" scene. I think we can confidently say that the first panel is from the end of the series.

I don't buy the whole "Eat a royal pure titan, gain control of the coordinate" but I think there is a path for him to learn to control it. I think he just has to learn it. The royal family has learned how to control it over generations...and passed that knowledge on to each holder. So it grew over time. Eren is just the first, so he has to learn how to unlock it.