"You will be able to see both of these publications in Games Workshop stores and many independent stockists around the world on Saturday 1st February."
That's correct. It was a misunderstading between me and the GW manager I talked with, I had an email confirm yesterday for my pre-order products and I'm receiving both WV and WD today or tomorrow to be sold from February the 1st. Sorry for that.
Prices in Italy are those I posted. If you look at differences beetween countries are minimal (Thorgrim 40 € in Italy and Spain, 39€ in Germany and France), so they should not change much.
40€ is for the dual kit hammerers/longbears so yes, it's a dual kit not hammerers only.