That Isayama (creator of Attack on Titan) has been planning for the anime to be a sequel to the manga rather than an adaptation of it.
There’s a lot of evidence to support this but the one piece that kind of kicked off the theory is the fact that Attack on Titan copied a lot from a game called Muv-Luv. The ending of Muv-Luv 2 is even nearly identical to the ending of Attack on Titan. In Muv-Luv 3, they introduced multiple timelines and it had a different ending. So if Isayama can copy and ending once he can probably do it twice.
That Isayama (creator of Attack on Titan) has been planning for the anime to be a sequel to the manga rather than an adaptation of it.
There’s a lot of evidence to support this but the one piece that kind of kicked off the theory is the fact that Attack on Titan copied a lot from a game called Muv-Luv. The ending of Muv-Luv 2 is even nearly identical to the ending of Attack on Titan. In Muv-Luv 3, they introduced multiple timelines and it had a different ending. So if Isayama can copy and ending once he can probably do it twice.