You sound like the person I chatted with Yesterday in the chatroom.  If you are, hello again, and welcome.  If not, well hello and welcome.  
I don't think there is really straightforward answer to your question.  Everyone's body and chemistry is different.  What has affected a few one way, may affect another few a different way.  After reading so many posts on here over the year, many folks started out with one intent, and ended up on a completely new path that was never in their original scope.  There are others that have been able to stay the path of their original intent.  
For myself I do not see transitioning in my near future, but I am not one to say never.  I just know better that to deal with any absolutes.  

  I know with me NBE has lowered my libido to where it is not controlling me, I control it.  I have also been developing breasts with my current regiment, and I am okay with that.  

  I don't think you will be able to gain control of your libido without potentially ending up with some level of breast development.  
Best of luck wherever your path may lead.