Name: Monster Hunter Generations Ultimate (Monster Hunter XX in Japan)
Platform: Nintendo Switch
Release Date: August 28th, 2018 (US)
Nintendo Switch will get it's first new MH game in the West on August 28th, 2018. Unfortunately, it's not a new MH game but rather an upgraded version of Monster Hunter Generations which released on 3ds in the west on 2016. The game had already released in Japan on March 18. 2017.
The game allows players to play with 3 other players over local and online multiplayer simultaneously. Players will also be able to transfer their 3ds save to the Switch version. There are 6 different hunting styles and various weapons and armors to collect. There is also a mode where you can take down monsters as Felynes (Think something similar to Palicos from MH: World)
Source: 1) https://www.polygon.com/2018/5/10/17339492/monster-hunter-switch-us-release-generations-ultimate
2) https://www.engadget.com/2018/05/10/monster-hunter-generations-ultimate-arrive-switch-aug-28/