Take it for what you will...it's nothing too amazingly surprisingly (i.e. someone could pretty easily make this stuff up), but I guess Develop ought to have reasonably solid contacts and stuff.
http://www.develop-online.net/news/38916/Sony-studios-begin-PlayStation-4-projects
http://www.develop-online.net/news/38917/Sources-point-to-2013-launch-for-Xbox-Next
http://www.develop-online.net/news/38916/Sony-studios-begin-PlayStation-4-projects
Preliminary work on PlayStation 4 games has begun at several internal Sony studios, Develop understands.
A trusted source connected to the matter has told Develop that various game projects are at very early stages, though didnt reveal which of Sonys sixteen first-party studios had been delegated the work.
Few in the games business expect a new PlayStation to launch before 2014 the next few Christmases will likely see Sony marketing software for PS3, Move and its new Vita handheld.
It is a company convention at Sony to remain constantly engaged in R&D work on future platforms in fact PS Vita development began soon after the release of the PSP in 2005. But Develop has been told that several SCE studios now have teams working on PS4 game concepts that could jump into full production if given the green light.
Many developers believe PlayStation 3, which first launched five years ago and has gone on to sell more than fifty million units, remains a high-end machine.
In a new interview with Develop, Epic president Mike Capps said it would be a very tall order to build commercial hardware that is a generational leap forward.
I mean, PS3 is still very bad-ass, he said..
http://www.develop-online.net/news/38917/Sources-point-to-2013-launch-for-Xbox-Next
Microsoft and industry partners are working towards a 2013 launch of the next generation Xbox, Develop understands.
Multiple sources across the industry, from processor chip manufacturers to middleware firms, have told Develop they expect the console to be fully unveiled at E3 2013, months before its release. The collection of data points to a 2013 launch for the system across all main regions, though early 2014 remains a possibility.