An open letter sent by developer CD Projekt RED has detailed the decision to postpone the game's release, which will now be sometime in February 2015 - no specific date was mentioned.
It seems the primary reason is that the developer wants to create a product that meets high quality standards, which might not be achieved if it is released sooner rather than later:
"We recent reexamined what we had achieved thus far, and faced a choice about the game's final release date. The decision we made was difficult, thoroughly considered, and ultimately clear and obvious. We could have released the game towards the end of this year as we had initially planned. Yet we concluded that a few additional months will let us achieve the quality that will satisfy us, the quality gamers expect from us. Consequently, we have set the release of The Witcher 3: Wild Hunt for February 2015.
A separate note specifically for gamers to read contains an apology for the delay:
"Dear gamers - we know many of you would have liked to play The Witcher 3 sooner, as soon as possible, even. We're sorry to make you wait longer than you, or we, initially assumed you would. At the same time, we believe the game will prove to be worth the wait and meet the expectations you have of us. We believe The Witcher 3: Wild Hunt will be an exceptional RPG, one of the best, providing many hours of wonderful entertainment."
The Witcher 3: Wild Hunt will be available on Xbox One, PS4, and Windows.
