It sounds like they needed a few more months of development time to deliver a quality product for the PS4, PS3, Xbox One, Xbox 360 and PC, so it's probably for the better.
Read on for Techland's message to their fans.
As we've learned from previous reveals, being out at night is not what you'll want to be doing in the world of Dying Light, and the new media shows us why.
We know you’ve been waiting on a Dying Light release date for quite some time now. After careful consideration, we have decided to release our upcoming game in February 2015. Since this means Dying Light will launch a few months later than originally planned, we feel obliged to explain the reasons that influenced this important decision.
When we started the development of Dying Light, we were committed to innovation. We wanted to give you a freedom of movement unprecedented in open-world games. After many improvements and months of hard work, we have now come so close to realizing our initial vision we feel we cannot stop before it is ready.
We believe the Natural Movement element of our game will change what you expect from the genre, and we don’t want to sacrifice any of its potential by releasing too early. This quality-focused thinking underlines all our development choices and we hope you share our belief that the gameplay must always come first.
The new date ensures that we can fully realize our vision of an innovative open-world game. We won’t need to make compromises or trade-offs on any of the five platforms we’re working on. For you, it means an outstanding, original game that makes the wait more than worthwhile.
Finally, we would like to thank our publishing partner, Warner Bros. Interactive Entertainment, which fully supports our decision. It’s a real pleasure to work in an environment where quality is universally accepted as the top priority. We believe that this is the only way to make truly incredible games.
We also have an additional announcement for you: starting next month at E3 2014, we’ll be telling you much more about all the exciting features and different aspects of Dying Light. Stay tuned!
– Dying Light Team