Kojima shared some pictures of a photogrammetry session going on at the studio, using 3D scanning. It looks like he’s capturing a female actor, you can see an out of focus reflection in the mirror on the fourth photo. Kojima’s usual teasing.
Kojima already stated there will also be a female character in Death Stranding, but so far he hasn’t detailed what kind of role this character will have or who will be playing her. There isn’t much we can get out of these images but they’re fun to look at nonetheless.
Source: Hideo Kojima Twitter (1, 2, 3)