I don't anticipate this will ever return. When Sprint started the Premier program back in February of 2009 there was really only one major smartphone, the iPhone and subsidies on other phones were relatively small. . Sprint started Premier in an effort to stop or slow iPhone defections. When the real smartphone revolution hit with the Androids Sprint really felt the budget pinch that the Premier program caused. Enter the heavier subsidized iPhone and the program had to disappear.
The end of the program had to come even without the iPhone due to the increasing costs of the more and more sophisticated Androids. That isn't to say that some sort of a loyalty program won't come back to Sprint, but I don't think we will see the annual upgrade part, at least in the same format it was in the old program.