2.5m is a shitload of money.
We cannot expect as much money in the upcomming days as they got the 4 firsts days. Truly I don't expect them to raise that much money in the 25 next days. However, some last minutes backers should pledge in the last 5 days as usual but they should not bring in as much money a in the 4 firsts days...
so wait and see. I am confident in my 1.8M guess^^