UPDATE 1PM BST: CD Projekt Red has, in a statement given to Eurogamer, confirmed The Witcher 3: Wild Hunt - Game of the Year Edition.
Game director Konrad Tomaszkiewicz told us: "The Witcher 3: Wild Hunt was a gigantic effort for the entire studio, and both the team and me were amazed by the good reception of Geralt's adventures. Since launch, we've released two expansions, Hearts of Stone and Blood and Wine, which added a lot of new adventures to the already potent mix.
"With all the free DLC and updates the game received so far, including significant changes to the game's interface and mechanics, many gamers have asked us if we're working on some sort of a Game of the Year Edition. I'm happy to confirm - yes, plans are in motion to release such an edition. We'll release more details, including the release date, in the future. In the meantime, I'd like to thank every fan of the game for their support - you're really amazing!"
ORIGINAL STORY 12PM BST: The German age-ratings board USK has listed an entry for The Witcher 3: Wild Hunt - Game of the Year Edition for PC, PS4 and Xbox One. Eurogamer has been told separately by a source that this game exists and will be released 26th August 2016.
The listing can be seen on the latest classifications page on the USK website and was initially spotted by Twitter user lifeflower.
We're waiting to hear back from CD Projekt Red.
A Game of the Year Edition of The Witcher 3 will presumably bundle the game plus both downloadable expansions, which are currently available in an Expansion Pass that costs £20, or can be bought separately for slightly more (Hearts of Stone for £8 and Blood and Wine for £16).
Hearts of Stone, the smaller of the expansions, adds a 10-hour story to the game. "A delightful romp, if you need more Witcher 3 with your Witcher 3," wrote Cassandra Khaw in our The Witcher 3: Hearts of Stone review.
But it's Blood and Wine that's the main event: a 30-hour addition that takes place in the brand new - and gorgeous - region of Touissant. "A fitting end to an exceptional video game," wrote Johnny Chiodini in our The Witcher 3: Blood and Wine review.