There are 14 days to go, and I think they'll hit 2.1 million or at least be very close in about one week. That's leaves an entire week of last minute hype, depending on what Fargo does. If it's hovering around 2.3-2.4 million by the last day, it'll probably be bumped to 2.5 million or so.
Thats my guess as well, 22k-25k/day would mean reaching it around there:
And I'd still say that it would go a long way if he posted more on the KS page. His Interviews for example or the fact that Chris is signing the boxed editions too.