I am a big fan of Nas during the I Am era myself. He was on a roll with then joints he did for the double album. It would've been hip hops best double album.
I personally, wouldn't mind if Nas came out really quick with another album on the LIG tip. Being an older fan, I can appreciate the mature topics and good, NO I.D beats but I think that the Lost Tapes2 should hit first to carry the momentum. This is especially the case if Nas win a Grammy for LIG. Still though, I remain skeptical that Nas will put out anything in 2013. Unlike 2001' when he put out Stillmatic and then dropped Lost Tapes, Illmatic to Stillmatic and then God's Son all in 2002, Nas doesn't have that kind of control of his releases at Def Jam. I am doubtful.