Did God create man to be gods themselves? Genesis 1:26-28 says:


  26 Then God said, “Let us make mankind in our image, in our likeness, so that they may rule over the fish in the sea and the birds in the sky, over the livestock and all the wild animals,[a] and over all the creatures that move along the ground.”
  
  27 So God created mankind in his own image,
      in the image of God he created them;
      male and female he created them.
  
  28 God blessed them and said to them, “Be fruitful and increase in number; fill the earth and subdue it. Rule over the fish in the sea and the birds in the sky and over every living creature that moves on the ground.”


If God created man not only in his image, but in his likeness, and in order to rule over the rest of Earth, did he intend for them to be gods themselves?
The answer to this depends very much on the concept of who God is in the first place.  If God is, as evangelical Christians believe, pre-existent, self-existent, omnipotent, omniscient, infinite and eternal, then it would be impossible for there to ever be multiple gods that share all those attributes.

A created being cannot become uncreated.  A mortal being, or even an immortal being (that had a beginning but will live forever), cannot become eternal (without a beginning).

So, to whatever level of authority and power God would ever endow to mankind, we could never attain equality with God Himself.

In theology, we understand that there are communicable attributes and incommnicable attributes.  The likeness of God within us contains His communicable atrributes.  We are moral beings, intellectual beings, spiritual beings, etc.  Yet, we are not uncreated, eternal, self-existent beings.