So we know the size of the game via the Microsoft store and it is 50.02 GB for the bundle.
Resident Evil 8 is 35 GB while Re: Verse is 15 GB. The game itself is 35GB.
I am actually surprised considering the last game was 20.21 GB. The game will be running in 4k at 60 fp as well. I expect the game to be 50 GB+, not including the bundle.