CD Projekt RED say they are "removing the final bugs".
Following on from the delay of The Witcher 3: Wild Hunt a couple of weeks ago, it has now been revealed that it was delayed to refine the game in terms of stamping out bugs.
In an email to Nerdacy, CD Projekt RED CEO Marcin Iwinski said, "We are removing the final bugs and still running optimization in various areas. What it will result in is a smoother and more engaging experience and, yes, the game looking better across all platforms."
Iwinski continued by saying, "The content is locked, so no content changes are being made at this point. The scale of the open world in the Witcher 3: Wild Hunt is unprecedented, so fear not – there is enough gameplay to keep you playing for weeks.”
With the recent problems we've seen with other games and their bug problems this year, it's wise of the developers to take that extra time to polish up The Witcher 3.