User blog comment:Stryker-Fyre/Various Deaths of Aizen/@comment-44061-20100326174543

Its possible that it would kill bleach for those who support his character but Bleach was Bleach way before anyone knew Aizen. The only thing that would kill bleach is Ichigo dying or the concepts the story is built around. Aizen can't continue in the story unless all other characters are powerful enough to stop him, which isn't the case especially with his zanpakuto. So actually Aizen continuing would be the end of bleach.