We are still closing on the contents of the Deluxe Edition, that's why we haven't announced officially yet.
The idea is that the Deluxe edition includes one cosmetic pack which will be delivered right when you buy it (the camouflage one) and then some other additional cosmetics which will be granted when the 1.0 version launches. Those cosmetics are the ones we're currently closing one but you can expect at least a couple more of cosmetic packs like the camo one.
Also, the camo set is exclusive to PS5 and it will only be available during the Early Access period (if you buy the Deluxe after 1.0 launches, you won't get it).