Some good info in the thread.
To the OP, there are a lot of variables not covered in the info you provided. These include: 1) when did the individual submit the application, 2) what major did they apply for, 3) did they apply for just Fall 2016 or either Fall or Summer 2016, 4) etc.
Answers to those could help us a bit, but in the end none of us can resolve the situation.
My suggestions:
1. contact Admissions. Discuss what options are available to the applicant with them. If you don't care for the options provided, ask to speak to a supervisor. You basically want to learn what you can do to get the kid into Main in 2016. The 3 best options are likely to be some combination of: 1) going LEAP and starting in June, 2) applying to a different college within PSU, 3) applying as DUS (PSU's terminology for undecided)
2. Some have suggested contacting the College of Engineering. You could try, but they have more applicants than they can accept. As such, I don't think you'll get a lot of assistance from them, in that they have, by now, filled the majority of their slots, so they're not looking to find room for somebody else.
You want to do this ASAP, though as Oracle indicated unless you start the conversation today, it's not going to happen until early next year. Be very polite, and you're likely to find people that are willing to help you. The bottom line is that you're looking for any different approach that can get the kid into Main, so understand that you'll need to be a little flexible, and the student will have to be willing to take a path that's a little different than what they planned. The folks at Admissions are very helpful, though they're also use to a lot of calls complaining about not getting into Main. If you're polite, and keep stressing that you're seeking a solution (and don't allow them to end the call before discussing possible solutions with you), you'll probably get what you are seeking for this student. If you find you are dealing with a person in Admissions that just doesn't seem to be working with you, either ask for a supervisor or take any opportunity to end the call and just call back again (hopefully getting a different advisor) and start the process over again.
Good luck, and keep us posted