Per the NAQT website, there are 2 changes...one is minor, one is major.
You have to win a game to earn a bid, even if you are the only small school in the field (the Miami Community Charter school tule, unofficially )
The top 30% of the small school finishers will earn bids.
Needless to say, this could really pave the way for a lot of schools, and specifically a lot of Ohio schools, to go to Rosemont in April.