I've read things like these so many times:
"Hey, I've just seen that the release date of the blabla version has been set to february instead of march!"
"Where have you seen that?"
"It was at this online shop. I've ordered many games there, and they never let me down on a release date before, so they must know!"
Guys, all the online shops have their information from some source they think it's reliable, but the only institution that can provide us with good information is Sony. If you gather release dates from shops (that are reliable in your opinion) you'll end up with 10 to 15 different dates. I can only ask you to trust noone in this matter, only trust Sony. This doesn't mean that the release won't be delayed again if they present a final release date, but at least the release was really planned for that date then.
Don't trust any online shop, they can't know better than Sony, no matter how good they are!