I think a more realistic number down the line is 15-16ppg, 7-8 rebounds, 3-4 steals.
this would be nice as long as we have scorers. kemba, (insert 2013 draft pick), sessions.
I think 12-7 is a little underachieving to be honest. down the line (some years from now) i would hope he could do better than that.
I look at Andre Igoudala (i believe they are similar players) and see that for a 3 year stretch in Philly 06-09 he averaged 19 ppg. he does have a better 3 ball than MKG but he shot 30% those 3 years so he wasnt great. this is a more realistic expectation
*ALSO* i know you will say "but Iggy was the focal point of their offense" and that is true to a degree, but i see MKG getting better looks and more easy baskets.