Corridor Crew did a some sort of anime using this technique [1] and then they did two videos [2, 3] explaining the technology behind. Quite interesting if you ask me!
There still are some issues with the eyes and a bit of flickering but at the speed everything is moving I wouldn't be surprised if this improves in a year or two.
Needless to say, there's still a lot of artistry involved in such a process so anything is yet to be completely automated.
