I'm thinking the colouring and patterns on the armour and masks are going to be separately customisable from the masks and armour themselves, rather than just "this mask is this colour" like we got in some previous games.
In the trailer one of the masks we saw was this red one:
Then the screenshots show what looks to be the same mask, only this time it's grey and with a skull-type camo pattern on it:
Add to that the text for the digital deluxe edition, which mentions "Playstation themed Predator and armour skin mask war paint", which implies that we'll be able to add colours/camo to the masks and armour we get (I'm thinking by default it'll be the traditional grey/silver, then we can change it if we want).
If that's the case then that'll be great, because that's just about the best way you could have a customisable video game Predator. It means that even if two people have the same masks and armour on their Predators could still look pretty different from one another.