It is nowhere close to being released. They are still working/changing on major game systems and aren't even ready to speak about the bigger changes. No way the game releases until the summer, at the earliest.
http://us.battle.net/d3/en/blog/4325959/Systems_Changes-1_19_2012
http://us.battle.net/d3/en/blog/4325959/Systems_Changes-1_19_2012