https://wccftech.com/monster-hunter-world-iceborne-update-2/

Free Monster Hunter World Iceborne Update 2 is arriving on December 5th and will pack a new monster, weapons, armor sets, and a new region.

Alongside the announcement of a new developer diary, Capcom announced the news through Twitter and other social media. The developer diary will cover the contexts of the upcoming free update and will arrive on December 4th.