Firstly, congrats! Makes me wish I had just gone EDP since I have heard nothing from other schools at this point and this is my top choice.
I'm hoping IU just doesn't care and starts mailing all acceptances earlier (But I am getting ahead of myself...I don't know what'll happen.)
Although nothing is for sure, I'd say chances are good that letters will come a little sooner than last year... as for why that is, I have no idea.