I think that as he matures he WILL be a PG, and his game may resemble a young Baron Davis with a combination of strength and hops. He will likely have a lot more range than Baron, even with an NBA line. He will need to improve his passing ability.
Some guys who are naturally tiny 2-guards resist the insistance that they become PGs but others (Chauncey Billups for example) embrace it and eventually become good playmakers as well. From what I've seen he has the necessary basketball IQ, vision, and demeanor to be a legit PG.