Maybe the next next Bill & Ted movie can have Evil Robot Bill & Ted go back in time across dimensions to try and stop these two auditioning for the movie in the first place (then our Bill & Ted obviously have to go back and stop them, and then the robots end up performing the audition in the stead of Alex Winters and Keanu Reeves, which is exactly what causes them to cast in the film in the first place).
My headcanon fanfic aside: it's kind of cool to see them both try to play the opposite parts from the ones they landed.
via GameRant