I don't have any doubt at all, seeing he's quick, skillful, moves well and seems to make good decisions for the most part.
I also disagree, he won't be a big bodied midfielder but he doesn't need to be to make the most of his skill set. Similar to an Atkins/Dahlhaus/ in that he just needs to be competent inside wise, and clean up on the outside. There are many great players who have made a career from doing that, though I equally am not willing to go all out and say he'll be a top tier midfielder yet.
With forwards, a lot of that can be cleaned up though. Only worry if it's set shots he's missing seeing that's as much of a mental thing as it is technical.
Might just be a technical issue then seeing it looked like Bonner was stronger than him during the game, especially through the core.
Still though, there'd be room for improvement from just being in a professional environment.