Witcher 3 - Dev Diary and Q&A Gameplay

Eurogamer has a short article about a twitch stream for this game, published on May 6th.
You can watch the video from the Eurogamer site here. A quote, then:

Yesterday's live Witcher 3 gameplay session focused on combat and how different character builds approach it. It gave a real, in-depth look at the game's different sets of perks and how you can customise your Geralt hero to suit your style. The game's difficulty was also demonstrated, the same monster encounter being played on the game's most difficult setting and then the game's easiest setting. Incidentally, I played the game on a normal difficulty setting earlier this year and it was challenging.

A quote on Dice Poker:

Towards the end of the video, during the Q&A, level designer Miles Tost talked about the disappearance of the Dice Poker mini-game, which was in the first two Witcher games. It won't, he confirmed, be in The Witcher 3 - instead the game will have a new card game called Gwent (and fist fighting).