On February 8th, XBox One and PlayStation 4 Monster Hunter World players will get to try out the Geralt of Rivia crossover content, though PC players will have to wait an indeterminate amount of time. The announcement was made through the Monster Hunter Twitter, but without any reference to what that content will include.
[PS4/X1] Ready your blades! Geralt of Rivia from @witchergame voyages into #MHWorld in a free title update on Feb 8. pic.twitter.com/ljdmX8AAmI
— Monster Hunter (@monsterhunter) January 11, 2019
If the Geralt content is similar to the recently released Assassin's Creed crossover, it's likely that players will find a number of armor and / or weapon skins themed on Geralt.
We'll be keeping eyes on the official site as the date nears and more information is released.