The rules of Gwent, the popular card game featured in The Witcher 3: Wild Hunt, haven't changed terribly much over the years. There have been a few minor alterations in the jump from Witcher to the standalone Gwent digital game to the physical world, but these merely add some clarity or tone down some of the early design decisions to prevent what could end up being totally overwhelming odds in certain cases.
They're quality-of-life changes, and the quality of life in the physical version of Gwent (AKA Gwent: The Legendary Card Game) is good. If you were looking for the designers to go further afield here, you're likely to be disappointed, and one could perhaps argue that this version of Gwent is too close to the original. But given that this is the first true, full-on tabletop version, I can't fault it too much for being a close adaptation. The original would have been one of the best card games around if it were real, after all.
