My 9 year old scored high on CTY verbal and writes short stories all the time. Honestly he would be miserable doing that in June while the weather was beautiful and his friends were at the beach or playing soccer. Especially having to come home and put in another couple hours! On the other hand, if it was a robotics class or a write your own video game class, he'd probably love it.
The part that is hard is the writing piece, right? Would they let him dictate it to you, and let you type it up? Could you help him plan - let him think out loud while you take notes? It sounds like a fantastic and challenging class. But I'm not sure they're accounting for the asynchronous nature of some GT kids?! So I agree you should talk to the teacher.
