The fact, that Jesus is called the Son, I believe is indicative of His divinity. One point which I try to keep in mind is that in referring to the Son as divine, is in reference to His preexistence. His flesh, His body, was not divine, it was flesh and blood, human, His body was matter. This is shown by the fact that He got tired, slept, got hungry, felt pain, and died a physical death. Deity can't die. The physical body of Jesus was the tent in which deity resided, in order that God might reconcile the world to Himself, and bring things under the feet of Christ. As God, nothing needed to be subjected to Him, nothing put under His feet. The author's use of the term heir of all things, meaning that Christ as the Son of God, the flesh of God, was entitled to all aspects of authority. It was the preincarnate Word, that created the world. Jesus was the "exact representation," of God, and Jesus was the invisible God made visible in human form, as God is Spirit, and can not be seen. The Greek Word for person (persona) was a mask that Greek actors wore when acting to reveal their character, but also to hide their own character. As mortal beings, we would be unable to see God's glory and live, and so it was in Jesus Christ that God's glory could be concealed so we could see divinity, at the same time concealing deity which would be destructive to us. As well, the divinity of Jesus is seen by the the authors's statement that not only did the world come about because of Him, but is also held together by Him. Colossi ans states that all thing were created through Him and for Him. Jesus' sitting down at the Father's right hand indicates the position of authority that the God-man had been given, but again this authority in relationship to Jesus' humanity. The preincarnate Word, always possessed all power.
The Son's role is to be conduit, the vehicle, in human form to be a physical representation of deity, by which all things were created, held together, and and the redemption of His chosen. This was the Father's will.