My guess is no.
He's not really a true PG from what I see and read. He's more of a replacment for Delfino than a backup PG. I bet he gets SMOKED on defense in his first year by PGS. Not to say he'll never get it but in year one if he's trying to check NBA guards I think he's in for a rude awakening.
Its not like he dominated the Euroleague 13 ppg 3 apg and honestly even with the euro stinginess with giving out asssist stats he had far too many 0,1 or 2 assist games to lead me to think he can run an NBA offense. I have doubts about his NBA 3 point range at this time. I think the Raptors really need a veteran backup PG like Lue, Anthony Johnson or even a type like Vaughn to allow Ukic to learn the NBA game withoput the pressure of running the offense or checking PGs