I figure we have the end of a project momentum going right now, if you get 20 more days levels will likely drop quite a bit for a while, but still give people who care more time to get more money, and towards the end of the extension numbers will pick back up quite a bit.
my current estimates have this project ending at about 1.2 mil without the extension, and leaving it at a decent chance for success with it. but I am by no means an expert, this is just guesses based of previous trends of projects though this one is goofy in it's own right given the drops in the middle where not as big as they should have been compared to the start, though that likely just goes to show your efforts to get this game out there have been working.