There's just the one piece of free Witcher 3 DLC this week, but CD Projekt Red says it's a big one. "One of the biggest pieces of DLC yet," in fact. It's a new quest, called Where The Cat and Wolf Play.
Here's the description:
"You'll explore a forgotten village and discover its terrifying secret. Find out who or what slaughtered its inhabitants and use all your witcher skills to confront this mysterious force.
"The Cat and the Wolf have clashed once before. Any guesses where this might be going?"
Dance party? I hope it's a dance party.
The DLC is available now, and can be grabbed from Steam (opens in new tab), GOG (opens in new tab), or through GOG Galaxy, by following the instructions on this page (opens in new tab).