I did, mind went blank there.I think you mean the U17 WC - and he won basically the same award which was the Golden Ball, meaning he was voted the best player at the tournament so signs look promising. I did manage to catch a couple of Nigeria's games, and their striker Omhisen stood out the most, but Nwakali looked very composed and pretty much ran the middle of the park. He's got a good passing range and he's strong.
This could be promising, as he looks very good from the little I've seen, but not enough to know whether he's better than Iheanacho - who looks like a very promising player himself.
Thanks for the insight, as usual!