I do suspect he'll end up at 6'3 before it's all said and done. Will probably still be wirey. It may take until 19 or 20 to reach that.
I wonder what kind of metrics are used for projectibility? I know they get stats from mom and dad. But how do they project kids? My wife's 5'4. I'm 6'1. Grandad's were 5'11"ish. My moms side had very tall people. He's a year or so ahead of where I was at 16. I think he'll be 6'3", but I wonder if a scout would ever guest that given my wife's height?
I wonder if it will also be obvious that the kid got all of his athleticism from her.