Height/weight/build would be very tough to implement, as others have said, but if R* could somehow put in the work to figure it out, I would be totally for it. As for realistic customization, the more, the better for me. I think customiation is one thing that makes games so great, especially the online end, seeing as you're in a lobby full of other real-life players, you won't wanna look anything like them. That's how it is for me at least. I love diversity in online games. I also have my own sense of style in real life that I've somewhat copied on GTA. Obviously I can't afford to dress as nice in real life as I do with most of my GTA wardrobe, but I'm getting there lol, and my point is still there. As for different facial features, hair, facial hair, eye color, they are all obviously going to be options to change. I have a strong feeling that R* will carry over GTAV's customization options, and introduce many more new options as well. I'm really looking forward to tweaking my character and his outfits to make it all kinda of "my own" in Red Dead Online.