There isn't much financial incentive to CGI a human - if they are just acting like a regular human. That's what actors are for.
I suppose Avatar is a case in point - it's worth CGIfying human actors because otherwise they would be totally out of place in the SF environment which is completely CGI.
I would like to propose this as a thread for people to write in their predictions for the next year and the next decade, when practical with probabilities attached. I'll probably make some in the comments.