Just also read that because of how the girls are portrayed in the game 'Dead or Alive:Xtreme 3" that they will not be releasing this game on the PS4 in the US, LOL...
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Go *** yourself team ninja...
I don't know if PS4 games work like the PS3, but the PS3 wasn't region locked. The one problem I have in the states is that I have to set the PS3 EU games to 720p to play on non Pal systems.
So I think you can import the game if it's not region locked, you just won't be seeing it in the local stores...
PS4 isn't region locked, but DLC is so you'll need an extra PSN account in whatever region your version of the game is to buy it.
Play-Asia confirmed they'll be stocking the English-language Asia region version of the game, and a lot of people got butthurt over it.
However, they've also more than doubled their Twitter followers since. It was fun watching it unfold.
https://twitter.com/playasia