There is little doubt that fans had a lot of questions about the final chapter of the Attack on Titan manga. For instance, people believed that Eren Jaeger's line "No, I don't want that!" was too unlike the character. Interestingly, Hajime Isayama has admitted that the dialogue was not part of his original plan for Eren.
The following contains SPOILERS from the Attack on Titan final chapter, PROCEED WITH CAUTION!
The Isayama interview has been shared on Reddit and it reveals how the manga creator had worked on the final chapter. Interestingly, it is stated that Isayama had already planned what would happen. However, the aforementioned line had come to him only when he was drawing the panels.
"Yams loves whiny Eren, so when he was drawing 'No, I don't want that!', he thought to himself: "Eren is back,'" the transcription of the interview reads.
It's an interesting revelation considering that the line didn't sit well with some fans. On the other hand, it may have been a way for Isayama to remind readers of the old Eren who grew up with Mikasa Ackerman and Armin Arlert.
The interview also revealed that Isayama wanted the three main characters to represent different virtues. Eren represents courage while Armin stands for wisdom. Interestingly, Isayama chose Mikasa to represent strength, stating that he thought it would be interesting for a woman to be the "'red' in a super sentai (superhero) team."
Although the manga is over, fans can still look forward to the second part of the fourth and final season of the Attack on Titan anime in Winter 2022.