Good question!
I'm a major fan of the hiphop and most of all of the hiphop that 2pac made. However, I think if he were alive 1 of 2 things would of happened.
The first, and most likely, is that he would have quit rapping altogether and starting making movies with Hannah Montana.
The second, is that he would have created a group with ICP and become a juggalo.
I think those are the two most likely scenarios.