One thing Attack on Titan fans absolutely do not want is a rushed final season with mediocre quality of animation from studio mappa.
Studio Mappa is working on several Anime consecutively, so it won’t be a surprise if final season of Attack on Titan gets delayed.
In first promotional video for the final season of Attack on Titan revealed a date for October 2020 release but later it was removed and till now Mappa Studio have not announced a release date yet.
There is less than one month before fall 2020 anime season starts, so it is very unusual for a studio to announce Première date this late.
Mappa Studio has been working on big projects this whole year including The God of Highschool, Jujutsu Kaisen, Taiso Samurai and Attack on Titan.
JuJutsu Kaisen is expected to be next big shonen anime, so animation is expected to be as good as it gets. We have already seen amazing animation quality of The God of Highschool anime.
Attack on Titan fans are worried that this might compromise the animation quality of the final season. When the final season trailer dropped, as much as fans were excited they were worried as well. As animation style isn’t the same as we were used to, although this wasn’t the big issue but still fans want Studio Mappa to give thier full resources to AoT final season production.
Manga fans will probably understand this situation better, as they know that there are many scenes where anime won’t do justice if they are not animated carefully.
Finally, Most AoT fans including myself can wait for the final season but Mappa Studio should not compromise the quality of production, just to release the anime on time.