so Battlefield 4 is from May 2012 developed？？？？

Hello everyone, I am a big Battlefield fans. very much like Battlefield games, I want to know Battlefield 4 Development time is how long,

this should be no secret

For example, I know that the watchdog is the development time is 3-4 year

Battlefield 3 is a 3 year development time

These are the games when there is no sale has been announced by the

http://www.computerandvideogames.com/289198/battlefield-3-will-be-game-of-the-year-says-ea/

http://pc.17173.com/news/07012013/103355607.shtml

And I predict Battlefield 4 Development time is 1 year and 3 months, On whether? ? ?

http://www.yxdown.com/news/201207/60340.html 2012.7.14 (Highlights: May began??)

http://www.3dmgame.com/news/201210/59878.html 2012.10.31 (highlights: BF4 project has just started shortly)

http://pc.duowan.com/1306/234288471330.html 2013.6.4 (BC3 no development)

On this three summary: that is May recruitment BC3 engineer (I can not find the specific reference data), BF4 project has just started shortly after the beginning of May is estimated, then let us estimate is May 31, and that did not BC3 development , then it is surely BF4, well let us start making estimates BF4 is 2012.5.31, to May 31, 2013 just one year, the pressure plate requires two months (because Microsoft's pressure plate seems to need three months time, BF4 naturally did Microsoft sell more, so for the time being estimated at 2 months). BF4 is October 29, 2013 sale, then the August 29, 2013 to a year and three months, the pressure plate two months, just before the budget agreement with me. But this time DICE pinch quite tight, so I would not worry about mine BF4 point. Although I desire into being big