I would be fine with it as long as they hired someone who atleast sounds like the original character. Mute characters would be just as bad as a different voice actor, but that's just me. I would still be happy if my character makes it in so it's not a total catastrophe.
id still like them in the game but if they dont have the right voice actor/actress id rather them not speak
because it just doesnt feel right when the wrong voice actor/actress is used