Betting the future of AMD on cable companies moving rapidly seems like a bad idea. Have you looked at a cable box recently?
http://forum.blu-ray.com/showthread.php?t=263787
2015 PDFs sent to the FCC by Sony for DSTAC (Downloadable DRM for CE platforms) have a PS3 as a Vidipath client and in the second PDF, a PS3 labeled PS4.
For the PS3 to be a Vidipath client will require a massive firmware update to include the features and Playready DRM required. With such an upgrade adding very popular features, it makes the PS3 more valuable. I've known this would happen since 2012 and is a major part of the reason I think there would be a PS3 hardware revision to support low power IPTV and game streaming.
Microsoft providing software Xbox 360 BC for XB1 kills one point in 2013 rumors supporting a refreshed Xbox 360 mini that would game stream to XB1 and Windows 10 PCs. The leaks for windows 8.1 with crash reporting for Xbox 360 was work on BC emulation not the Xbox 360 mini.
I still think refreshed Xbox 360 and PS3 might be coming but only because I believe media and game streaming in the home are going to be really big => Vidipath, Playready ND, Downloadable security DRM for Cable TV, 4K blu-ray with Digital bridge, Skype - ooVoo, IoT, ATSC 2.0 => 1080P and S3D and Browser for XTV.
4K blu-ray players are going to have all the features of a PS4 (above, after October) except game playing and will eventually sell for about $199 (no GDDR5 or APU). A refreshed PS3 with the same features and PS3 game playing could sell for $249. Is that viable? Consider
Nvidia's Shield is $199 without hard disk or catalog of games.
You either have a game console as a STB or PC connected to a TV if you believe the browser is going to need the power only a game console or PC can provide. All the other media features and Skype don't need more than what is seen in a tablet. Why so many ARM game consoles being released this year and next year, why do they all have near Xbox 360 performance?