Ok, so we've lost a whole update this year from his 5 if you're factoring in his vacation time.Yes.
03.22
06.28
09.04
I think next year will be the last for the project.
I'm surprised he hasn't totally abandoned it at this rate. I think you're likely right though. Almost all of the characters are complete. I remember him saying something about animating more of them down the road, but that's probably not going to happen.