I'm 6'2", wife is 5'6". He should be 6 feet tall at least.
I'm not worried about "the next level". Really just want to give him a leg up on middle school and early high school ball. And honestly, I think he'll play in high school at a variety of potential positions. Just depends on his skills and what the team needs. As long as he is having fun, it'll be cool.
On second thought, I will BM Jake Heaps dad for more info.