I'm not quite sure what does he meant exactly. But the situation with ARP is this: after that update (8.10 not 8.9) a player will be able to set a different camo instead of ARP one if he doesn't like it. Or in case he wants another one. It will just work the same way as for any other ship.
This thread was added on October 14, 2019, with posts from Bualar.
Nono, the thing is that those ARP ships will have Camo menu available to change the camo or remove it. You won't be able to use ARP Haruna camo on Kongo or whatever other ship.