This was my thought process as well. *IF* he was serious about the 52 updates in 52 weeks, he should have had at least two/three months worth of content, done, finished, ready for shipping. He would be actively working/rendering on content that's months ahead of what is being released. That way, he gives himself enough room for error, and still continue to release content regularly. That "buffer" of renders he had, was easily the perfect plan I described. Unfortunately, Braindrop can't seem to get out of his own way.
If I was developing a game, and I've seriously considered it, that would be my plan. I assume that's what NTL Media does as well, which is why they/he(I don't know if it's a team or solo guy) churn out regular updates every two weeks like near clockwork. It's because they're already working on content that is months ahead of what is being released.