Austin understanding consent was his character development in the first film. At the beginning of the film he did not; he was shown to be rambunctiously jumping on his partner despite her giving clear negative signals. He learns consent throughout the course of the film.

Thus, a good modernization would be for him to discover the importance of trans rights and respecting genders that do not align with those assigned at birth, over time. He would need to be misguided in the beginning and make some mistakes.