Alright, in my opinion the last chapter was kindof disappointing. It would be better if Isayama wrote another ending, not just overwrite the current one he finished. That original ending can be taken as the "Alternative Ending" while we get a "True Ending"

This is how the ending would be: 

" Eren killing off the Alliance and finishing off the world, by returning to Paradis and touching his kid (Hisu’s kid) he then witnesses his friends dying using the paths and says one final goodbye. We skip maybe a year or, so in the future we know Paradis will be safe. Eren lives in guilt but he achieved freedom, not only for him but for his kid and for Paradis. He visits the graves of his fallen comrades and leaves flowers there, broken and depressed. He then returns home and grabs his child who does not have to worry about racism and war in the future. “You are free...” " - Made by my friend, Dr Vibenari.

Seeing Eren die is disappointing, I understand his main goal was to exterminate all titans, and so he did it. He accomplished his goal, but at a cost of his life. Him dying made his friends sad, especially Mikasa who loved him, she misses him alot. Even if Eren got reincarnated as a bird it's still bad, seeing him alive in his normal human body would be much better, alot of people are also disappointed about the ending, most of them wanted Eren to finish the Rumbling and leave Paradis as the only country left, but what did he do? He stopped the Rumbling killing off 80% of Humanity, with a response "idk lol" and said he did it for his friends, lmao.

Atleast let Ymir finish the Rumbling and kill off everyone.