Geralt of Rivia, the main protagonist of The Witcher series, will be playable in an update coming to Monster Hunter World on February 8.
Revealed in a tweet from the official Monster Hunter account, this free update is coming to PlayStation 4 and Xbox One, with no definitive word on if it will make its way to PC in the future. The news that Geralt would be playable in Monster Hunter World came last month, at which time it was revealed that Geralt would be fully voiced by original voice actor Doug Cockle.
Source: IGN.com Here's When You Can Play as Geralt in Monster Hunter World