Board Thread:Manga/@comment-32563139-20170717125925/@comment-26495049-20170717163139

There was also significant support for the theory that Eren was simply confusing his own memories with that of Grisha/Kruger's, due to the deluge of memories from the 2 Titan powers inside of him (this would avoid the paradoxes inherent in time-travel stories). Check out Chapter 89's poll.

6 chapters down the road, and there is still no indication as to whether any of these theories hold any merit. I guess we'll have to wait a bit longer to find out. Personally, I'm hoping that Isayama comes up with a totally new way to explain this scene that no one expects.