Blood and Wine, the final and concluding DLC drop for last year's GOTY, The Witcher 3: Wild Hunt, could well be launching on June 7. The date comes via WCCFTech, after they spotted the date on Polish gaming site GRYOnline (all traces of the potential leak have since been deleted).
The June 7 release date does align with CD Projekt Red's plan to have the content out during the first half of 2016, something which the studio reconfirmed on Twitter just the other day. The last major expansion to the CDPR's expansive fantasy RPG, called Hearts of Stone, was rather good, and you can read our review by hitting this link.