What do you consider elite? Most people consider 20/10 elite. He already at 19/6. Only a handful of players are putting up those type of stats regardless of experience. He has a serious shot at elite numbers in his prime. All he has to do is become a bit more efficient and put forth the effort on defense. And his ability to play 38 minutes as a rookie is testimony of his work ethic and the kind of shape he's in.
The Okafor and Howard comparison isn't a good one. If you want a good comparison, it's Deron Williams.