Extremely disappointed. I really held up this one as 10/10, but with this kind of cheap lazy ass ending i just can't consider it a masterpiece anymore. It ended at chapter 123 for me, maybe throwing in 130 and 131 too.
I believe there could be an explanation or some vague hints for the many plot holes and inconsistencies, like Eren and Ymir having directed and scripted the battle to turn out like that. But that wouldn't still excuse just how inappropriate and out of place this ending was for this kind of manga. It was just like trying to flavor a chocolate cake with salt and pepper.
Also i see no convincing way to pull a peace ending. Especially after what Eren has done. Even if the titan curse disappear and nobody will turn into titans anymore, which i believe will happen, the suffering the rumbling already caused is unthinkable and people will hate the islanders even more.
I really wish for a twist too, but just look at that panel of Armin painted as a messiah, just take a
very good look, and tell me if a twist is still possible.