Am I to read that him taking the summer courses you are talking about will have him going to college in 2015?
It's a little complicated. He's taken some online courses over previous summers, and he's in an advanced math program where he started HS algebra in 7th grade. So at this point he only has 6 more credits required to graduate. Although he still has to take 2 years of english, which would be his only required class his Sr year if he doesn't opt to take english 4 over the summer.
He wants to take dual enrollment courses over this summer which would give him a couple classes less to take towards his undergrad degree. It's free to boot.
The program he may or may not get into (lottery slots), would start next fall. It's based on a college campus. He would take one semester of classes that would fulfil his HS requirements for graduation, then he would start the next semester as a college freshman. He would graduate "high school" in 2017, but would be graduating with his AA along with his HS diploma.