Capcom in Japan published a new promotion video from the upcoming Monster Hunter XX Nintendo 3DS game which will be available from March 18, 2017 in Japan.
The new video is introducing the next collaboration in the game with the popular HUNTER x HUNTER series.

As you can see from the video and the pictures you can get the from of the transformed version Gon from the original story. It will be available as a DLC in the near future, but Capcom will release more information later, after the release of the game.