Tim maybe a Mary Sue now, but I'm not sure making him oracle screams of originality here. Frankly most of the Batfamily aside from Batman and Batwing (who is new) are shells of their former selves.
Also I don't know if he would be the best choice for superhero information broker given the characers we have in the new 52 I think there are better candidates
being fair, Tim is no more of a Mary Sue than he was sine A lonely place to die
Thank you! Someone agrees with me.