Being able to import models from different formats, using conversion or not, has been common for years (See
Datasmith or
FBX, for example). The main problem for shooting games like Fortnite or COD would be the hit boxes. I was thinking more about stuff like
VRChat where unique models are already a thing and cost around $600 per model. Note that Mike Shinoda is talking about skins which are not necessary 3d models but could be as simple as imported textures. I could import a texture tied to a NFT contract proving that that texture was made by a high profile artist; It would be like wearing
haute couture IRL. That would be fantastic. The kids designing custom models or skins for VRChat today are the grand couturiers of tomorrow. A whole new economy could be build on this.