No console has ever been announced at E3. Why Xbox 720 and PS4 will be announced before E3

[VGKing]

platformmaster918 said:

VGKing said:
I expect PS4 to be announced early in the year at some Playstation Meeting in Japan. Release date will be December in Japan next year with early 2014 everywhere else. They can't let Nintendo dominate the portable and console market in Japan.....

I know they've done that with both portables but why would they avoid BF and Cyber Monday if the console is ready?

If it's possible then launch worlwide in holiday 2013...that would be great!
But if look at how they launched the Vita, this is what I'm going by. A PS4 would be much more difficult to build so I doubt they could pull off a worldwide launch within a few weeks.(I'm surprise Nintendo pulled it off TBH)