I've no interest in his book, but I am curious why it would take so long to revise it for a second edition. Yes, it's a very long book, but revisions are usually just that- fixing grammar here and there, updating a few passages or notes to reflect changes or knowledge since the original was published, and so on.
If he wants to add anything about the past two/three years, that would require a sequel, not a revised edition. It's way too much info to cover as an addendum or update, especially with his inability to control is penis word count.