They are releasing it; in June of 2019 at this board Roger said they were releasing Jarre's score to "The Collector", paired with the score to "David & Lisa" (by Mark Lawrence; his only score). No release date mentioned.
I'd love a CD from the album tapes (I have the Silva Screen CD mastered from an LP), but I fear it's a bit too late now. I think it must be with Arista, the Intrada CD release of Night Of The Generals was licensed from Arista (I can't find the CD right now, but I'm sure it was). Both LPs were released on the Colgems label (The Professionals COMO-5001 & Night Of The Generals COMO-5002).