I think in the typical witnesses mind the order goes publisher - governing body - jehovah. Jesus is someone that lived a life on earth that we should imitate and he will be used by jehovah to accomplish his will but he isn't really viewed as the active head of the congregation. The gb knowledge and guidance comes from jehovah through his holy spirit.
I don't believe the gb will ever do anything to jeopardize their power over the rank and file. That includes promoting jesus and his role in christianity. I saw the 2015 regional convention program on another thread and completely believe that all the jesus talks are a smokescreen for actually talking about jehovah.