Theres still a chance it is Nas playing the long con. It wouldn't be that hard for him to not drop the n-bomb on tracks although I kinda doubt he would have time to pretend to be someone else for years with no actual payoff so far.
Most of you probaly has heard of this dude before and about people thinking that it was actually Nas. I had trouble finding a link for the album and since the album is really dope I thought I would share it here for the ones that didnt got it. I wish Nas had this production. I hope to hear more of him in the future.