I'll be surprised if it was never considered for an album, if songs like "Boy No" and "Red Eye" - songs of which we believed to be completely unusable to the Estate - were revealed to have been posthumously reworked then it's safe to assume there are more songs they've gone through which will come as a total surprise to us. It's crazy how much of a rabbit hole the MJ vault is, even long after Michael's death.
Agreed with what you said though, ever since a member from Blackstreet said that Michael's version is different from their own I've been interested in hearing it. Isn't Michael's version sung in a faster tempo?