Brazilian perspective here, I think this means very little. Bolsonaro himself has three sons that currently hold very prominent elected positions (Senator, city congressman and federal congressman) so we didn’t even get rid of a “Bolsonaro candidate” for the next election. Besides that, parties that aligned with him made huge gains in the previous election in the legislative and local executives and they could prop up yet another just like him. It’s worth noting that before the stabbening, Bolsonaro was mostly just considered an oddity with very little voting intention. He was never some great leader of his own fascist movement before, and there has been very little effort to actually curb the movement itself after the election. Considering that most people here have a level of distrust for the Brasilia institutions such as the Supreme Court regardless of political alignment, I don’t even think this one will finally be the one that will discredit him in the eyes of his followers.