Its true that there are rumors
But I doubt that the rockets will trade him
They wont get much because hes a bit injury prone
Dont get me wrong they could get decent players, but not players like Chauncy and Prince, just because pistons dont want to give up their star players for someone who could get injured.
If someone did offer them something it would some decent players and Rockets wouldnt accept because they would rather risk having T-Mac healthy
Hope that helps