Update: Pearl Abyss has confirmed that the game requires an internet connection for initial setup (day 1 patch). Once installation is complete, the game can be enjoyed offline. However, an internet connection will be required every time they release a patch, the game will not run otherwise...
People have been getting the physical copy already, and as I understand it, the download along with patches is an unlock for the game.
48gb worth seems like a lot for just an update
That’s a fair point.