This is kinda random, but one of the HBO channels was just now showing The Abyss in actual HD. I'm dog sitting for my grandfather's caretaker this week while they're with my aunt and uncle at their beach place. I checked to see if they were subscribed to HBO and just happened to notice The Abyss in the lineup thinking it would just be the usual 4:3 SD master upscaled, but nope, much to my surprise it was actual hd and 2.35:1. To my knowledge there's no previous hd transfer of the movie, which means this is undoubtedly the one RMW worked on that will be used for the blu-ray.
I must say it looks great. It's got all the staples of a modern 4k/2k transfer with lots of fine detail muddied only by the broadcast compression. There's a very slight teal push but it's nothing egregious and all of the other colors are still there.
If I could watch the OOT like this I'd be thrilled.