According to the
http://www.2pacjapan.net/upcome/ site which has been up for years, this was supposed to come out on a 2Pac and Daz full length CD, which was presumably going to be the follow up to Makaveli & Dillinger EP (which was never properly released I think).
But this was probably before Amaru got involved and took away Death Row's chance of releasing anything, and then obviously Daz left DR, so even if they were to get the opportunity to do it in the future he'd probably have the masters to all those tracks and so they wouldn't, unless he came back to DR.
Interesting site, a lot of "not to be released" projects that were going to come out from Death Row's part, but instead we got the Amaru releases. Am I correct in thinking these were actually going to be released but then got pulled because Amaru won the rights?
-Z-