http://www.billboard.com/articles/news/ ... ain-deluxe
A long overdue deluxe reissue of Prince and the Revolution's classic 1984 album "Purple Rain" is slated for release early 2017.
While details are incomplete, the set will include "a second album of previously unreleased material," according to the press release, which also notes that plans for the set "were agreed with Prince before he passed away."
As for what that second album might include, multiple unreleased contemporaneous tracks - such as "Electric Intercourse", "G-Spot", "Father's Song", "Wednesday", "All Day, All Night" and "Possessed" - have appeared on bootlegs or were re-recorded with different Prince-related acts.
Also, several full concerts from the era were professionally recorded, including a March 1985 show that was released on the now out-of-print home video "Prince and the Revolution: Live".
Also, B-sides from the era such as "17 Days" and two versions of "God" either appeared in the film or are commonly associated with the album.