We can't anymore for the time being. The pre-orders are severely messed up for the time being because anyone who used to PS3->PS4 free upgrade campaign is not showing on Sony side that we own the PS4 version of ARR. Therefore, it won't let any of us buy the game.

The only people who were able to pre-order the game, are people who initially bought ARR for PS4, whether it was hard copy or digital. They have since taken the game down completely for everyone. I don't think many people were actually able to pre-order it before it went down.

And all of this happened yesterday, so since EU store doesn't update until Wednesday it's possible they didn't put it up at all for y'all.

Check in the Coming Soon section of your sidebar, you should see HW there but unavailable for PS4. It's like that for everyone I've talked to so far.