The Official Witcher Website has word that this updated version of CD Projekt's action/RPG is delayed (thanks Gamer's Hell) from its planned May release (story). Here's word, which explains the setback, and says an updated release date will be announced soon:

CD Projekt RED announces that the release of The Witcher: Enhanced Edition has been delayed. The delay can be attributed to the company’s goal of making The Witcher: Enhanced Edition as close to a flawless product as possible. CD Projekt RED is dedicated to a simultaneous worldwide launch, and is taking the extra time to polish each language version to meet the high standards of the global games market. The exact date of the premiere of the Enhanced Edition will be announced in the upcoming days.

CD Projekt RED decided to edit some language versions to meet the highest standards. Work continues on the English version, in which a significant amount of dialogue is being re-recorded and over 5000 lines of the script were rewritten, as well as the German version, in which the translation is being improved and many characters are receiving new voice-overs.

The Witcher: Enhanced Edition will be free of the majority of criticisms noted by fans and media in the original version of the game. The enhancements cover two major areas: removing technical issues (loading times will be reduced by 80%, stability of the game on various operating systems will be improved, and numerous improvements will be made to enhance fighting precision) and the aforementioned changes in language versions. Additionally, the product will ship to retail in a value-packed bundle that includes all language versions on a single master disc, the D’jinni Adventure Editor and two official adventures, the official soundtrack, an album of music inspired by The Witcher, a game guide, a map of The Witcher’s world and more. All of the enhancements will be available as a free download to existing game owners.

The exact date of the premiere of the Enhanced Edition will be announced in the upcoming days.