If development really is stopping, NWI should unlock hidden, AI only and removed past cosmetics as a sendoff.
Here's a list of things that aren't accessible in the game, were removed from the game, are for AI only, in the modkit files or only accessible through glitches.
AI ONLY:
Hoodie Down/Up All Black
Cargo Pants Black
Black Heavy Armor color for Insurgents
"Hawaiian" shirt for Insurgents
Altyn Helmet for Insurgents (I wouldn't expect this one because its a security DLC now, but would be nice)
Black Bomber Vest and black keffiyeh
REMOVED COSMETICS:
Ranger Green Shell Jacket (The compression shirt also has ranger green so team ID'ing isn't a valid reason)
Multiple plain black clothing options for Insurgents (Frayed all black T-shirt is in the game, so it's not as if this doesn't exist already)
IN THE MODKIT:
Cold-War era helmets for Insurgents (SSH-68, Fedayeen Saddam, M1)
Crye Precision clothes for Security
PRESENT IN TRAILERS (I don't want some of these in the game, but some are neat sounding)
internal affairs' olive green pants
gray urban warden
Black Security outfit (don't want this)
urban tiger stripe camo for insurgents cargo pants
unused snow camo for security
plain black vests for security forces (don't want this)
green insurgents vests
Black/White Urban Digital Camo for Rogue Cop set
ACCESSIBLE VIA RANDOMIZER
Light Sand Vest and Bags for Security
Grayish-lighter Black Bag for Insurgents
NWI, you've made these assets, they exist in the files. All you have to do is allow us to use them. It would be a nice bit of free content with little to no additional effort on your part.
If I'm forgetting anything, feel free to add to the list.