On August 25, 2017 going to release in Japan the Monster Hunter XX Nintendo Switch Ver. as the official port version of the popular Nintendo 3DS Monster Hunter XX. Just before the release of the game you can try it with the official DEMO which will be available from 10th of August, 2017 in the Japan Nintendo eShop.
In the DEMO you can try the multiplayer mode (upto 4 players) using the local communication feature.
It should be noted that you can move the save data file from the 3DS version to the final version Monster Hunter XX Nintendo Switch Ver. and the two different versions players can play together but only with the online multiplayer mode.