Maria Antonia is still a well sought bride and with the different remarriage of her father and the Orleans' girls I am not sure she will marry her OTL husband (she can marry Bavaria but also Savoy or Tuscany) while he can marry elsewhere: maybe Anna Maria Luisa de' Medici or one of the Neuburg's sisters (Maria Sophia Elisabeth, Maria Anna or Dorothea Sophia) as neither of them will make their OTL matches
Hmm interesting, her marrying the Duke of Savoy would be fascinating. And Maximilian marrying Anna Maria would be good