This is Hank Pym Jr. He's coming back to the Academy after getting his BS at MIT. Oh, he's only 17 too, so he (and his parents, Hank and Jan) decided the Academy's atmosphere would be good for him before he continues his education. He'll be taking some correspondence classes during this time.
He's like his parents and can shrink and grow and fly, but his powers have been a little more altered thanks to his father's and his seekrit experiments.
To know? He's brilliant. He's socially inept. He's hyper. He's weird. He probably at one time or another contacted your peep about joining his new super group (he's had 5).