I... do not have this hope.
To me, the first big alert that Bolsonaro would probably lose was his own party leader saying that if Bolsonaro lost his party would be split, because there would be a group that would be in favour of opposing Lula no matter what(thus implying that HE was open to a deal with Lula). Also, the pentecostal evangelists(which theoretically were big Bolsonaro supporters) were showing signs of defecting to Lula's side on late Sunday, with some calling for prayers for Lula.
It seems to me that the real opposition will be a group of 40-70 deputies(out of 513), with many in the supposed 'opposition' merely raising the price of their bribes. Haven't you heard about the "orçamento secreto" they were harping on so much. It is now being called "emendas do relator". Also, if things get as bad as in Argentina, the same motherfuckers of the previous paragraph will say they 'gave shelter' to the real opposition and leverage that to be part of the next government...