Now it's all speculation but answer me this...
On Sony's website, you can to this page...http://us.playstation.com/ps3/
if you type in say x39 or ps5 or ps0 instead of ps3, it doesn't work but...
if you type in ps4, it redirects you currently to the homepage.
Hmmm...so it is an active and working link, just right now it redirects you. 6 months ago, this link wouldn't work at all.
Ohhhhhhh the anticipation!