One Plus One is dope and should’ve been added to one of the later Illmatic projects, IMO.
I don’t think Nas recorded much more for Illmatic. There was On the Real though. There were a few original and official studio remixes that came out a little afterwards like:
One love feat Sadat X
One Love LG remix
The World Is Yours (Q-Tip)
Life’s a bytch (Arsenal Remix)
It Ain’t Hard to Tell (remix)
You had the unreleased demo, I’m a Villian officially released.
Then you have
Memory Lane (Q-Tip remix) unreleased
Of course the homie Noah Uman uncovered a few more rare remixes that he put one the Illmatic XX re-release.
Now there is the Illmatic Live that I swear I wish there released a physical CD of.
That’s basically about it for Illmatic.