For reason already mentioned, it would be an inconsequnt thing to do so. From an economical and development point of view.
Sony abandoned the Cell for good - not because of "se gud competition" as some falsly believe - mainly for the fast paced times we live in - where tech life cycles decrease steadily, new technology reaching the consumer market fast and prices decline quick, the consumer replacing old with new in shorter intervals - relying more on off the shelf solutions has become the wise thing to do. It is no coincidence all three console manufacturers have/had AMD as their supplier. Manufacturing capabilties, power consumption, versatility, cost efficiency ...
Research & develop complex hardware just isnt worth it anymore. It would be too short lived to justify it economically.
... Thats why we got the pro and the something X.
Hunting Season is done...
