Different Nate Song on DJ Quik's Album?

CDUniverse has just released the tracklist for DJ Quik's upcoming album "Trauma". On there they have Nate Dogg listed on a track called "Black Mercedes". Earlier Nate and Quik did a track called "What They Think of You" which looks like it won't make the album. Also, earlier reports on the album also stated that Nate would appear on a song titled "She Pass By", which looks to have also been scrapped.

Cover Source: Westcoast2k