Well the new teaser just went out and looking at the mask it now makes it clear that fortnite is taking reference images from cultural masks to make ingame skins, like the
3D Printable Fortnite Kitsune Drift Mask by Tanya Wiesner
Japanese Fox LED Mask – Japanese Oni Masks
Drift (outfit) - Fortnite Wiki
Amazon.com: Stormytime Mask Drift Light Up Masks Suitable for Fortnite games LED Fox Mask Cosplay Glowing Decorations Masks Gift Costume Festival Party(Blue Pink) : Toys & Games