If an Anglican priest decides to become Catholic, that doesn't mean they automatically get to become a Catholic priest, whether they are married or not. If a married Anglican priest wants to be a Catholic priest, then they must first become Catholic. Afterward, they can apply for the pastoral provision, which is an individual application for an exception to the norm of having celibate priests. So, at no time will an Anglican priest be told they can't have sexual relations with their wife because of a vow of celibacy.
I wouldn't expect anything else. We need to really, really, really focus on adult catechesis.