about 2 years ago - /u/ - Direct link
A lil somethin somethin: You can find the details for this event on the announcement page here.
about 2 years ago - MHR_CAPCOM - Direct link

*Footage taken from the Nintendo Switch version.

Monster Hunter Rise: Sunbreak is launching worldwide on June 30, 2022!
What is Monster Hunter Rise: Sunbreak!? This is a massive expansion to Monster Hunter Rise, containing a variety of new features.
The action is even more fluid, there are new unique monsters and locales, and there are extra challenging master rank quests!
Having protected Kamura from the calamity, the hunter sets out to save the Kingdom from the elder dragon Malzeno!

Visit the below pages for more information.
Monster Hunter Rise: Sunbreak
https://store.steampowered.com/app/1880360

Monster Hunter Rise: Sunbreak Deluxe Edition
https://store.steampowered.com/bundle/24917

Monster Hunter Rise: Sunbreak Deluxe Edition content:
- The massive expansion Monster Hunter Rise: Sunbreak
- The Monster Hunter Rise: Sunbreak Deluxe Kit, including various add-on content



Pre-purchase the game to receive special layered armor for your Buddies!

Exclusive bonuses
- Loyal Dog Costume (Palamute Layered Armor)
- Striped Cat Costume (Palico Layered Armor)

These bonuses are available to users who pre-purchase the game before 03:59 UTC on June 30, 2022.
They may be made available separately at a later date.
Layered armor only changes your characters' appearance.

Official Website: https://www.monsterhunter.com/rise-sunbreak/

Caution:
You need the main game of Monster Hunter Rise in order to play Monster Hunter Rise: Sunbreak.
You need to complete the 7★ Hub Quest "Serpent Goddess of Thunder" in Monster Hunter Rise in order to access the newly added features of Monster Hunter Rise: Sunbreak.