As far as I know, out of the 4 big VR video players 2 already support external drives over the usb-c port. Supporting FAT32, NTFS and exFAT.
It would be kind of a game changer for me and everybody else who has to travel a lot.
Any progress on USB(OTG)? I don't know how the others do it but maybe this and more could be done using the UE Android File System?