I think that Prince has cultivated a market for their O3/Exo3 technology, and to completely give up on some of their successful frames would be a mistake. I know there are a lot of racquet "snobs" out there (I used to be one of them) that will never concede that they might play better with a Prince just because of the stigma of playing with ports/muted feel.
I think they need to release some traditional frames, but still produce some of the popular Exo3 frames (Tours, Rebels, Red/Blue/Silver). I would be interested to see both an Exo3 and a traditional style Rebel.
Prince Rebel 95
PTR Certified Pro / USRSA Certified MRT