Yes, this sort of tech is likely to make its way into CGI. Some relevant resources if you're interested:
1. This post shows how GANs were used to replicate the Princess Leia scene in Rogue One. The scene in the movie required a team of special effects artists, whereas this required access to lots of images of Carrie Fischer, a GPU, and this technology: https://io9.gizmodo.com/this-video-uses-the-power-of-deepfak...