I think Aftermath is the perfect spot for him to grow to appeal a main stream audience without completely changing it up. With Dre, he can still be lyrical on a track, not dumb it down TOO much and Dre's beat could still make it a radio worthy banger. His style will change as he grows but I don't ever see Kendrick really selling out. If anything I think he'll be like an Eminem. Not saying he'll be as commercially successful, but Em was able to sell to a main stream audience and still be lyrical.