They will 3-4 months after game release just like oh you gotta buy whatever to get nuketown on BO2/3 then 3-4 months later its released in a title update, they make money off pre orders and selling it like this that is why they do it.
I mean how is lil jimmy going to play COD4 remasted if he didn't pre order and waited 1-2 years after this games release to buy this or the other. the game will just die out if they don't make it fully public after a few months, they just know cod skids will buy it with IW and they make lots of cash.
All these youtube are saying ripcod and yet most them pre order it to get cod4 yet they can play it now and can't wait a few month after release then shaming the maker, but there making more cash then we ever will
therefore most people are just weak minded, nuff on the rant