Did you apply for FT for the FNP program? When I went to the open house, they had said they had filled the FT Fall 2017 cohort, but were still accepting PT students. I believe if you applied for FT and are accepted, they may give a later start date (like January 2018, but I'm not 100% sure).
I applied to UPenn because I wanted to be able to obtain my MSN prior to DNP, similar to you. I can always continue to get my DNP at a later time and spread out the debt I am about to accumulate . It sounds like UPenn isn't far from extending some of their programs into DNP similar to what they did with the Nurse Anesthetist program.
PS I did receive my letter of acceptance. Very excited! I do have to say not to give up hope. It seems that they do not have a pattern for sending out decisions. If you haven't heard anything back yet, it still means you're in the running :)