If a man's voice gets deeper after T replacement that would often indicate a major issue w/T throughout their teens. It's mostly women who's voices deepen on steroids, much to the horror of the average person. Virilization traits aren't going to change much from my understanding. That additional back hair I've gotten isn't going anywhere fortunately (sarcasm pause)
Your deeper voice DEFINITELY won't go back to a higher pitch.
Facial fat and the influence of T? I would think only excess fat in general is going to cause this, not a hormone - unless you're a man who's E balloons. But any fat distribution that is dependent upon exogenous hormones will resume it's previous characteristics if that hormone is stopped. Having said that, going from 200 to 100mg/week isn't going affect jack.