Bethesda have announced the PC system requirements to play its upcoming Wolfenstein: The New Order and it seems pretty feasible for those maintaining a decent rig in the past.
To run the game, you'll need the following according to Kotaku:
64-bit Windows 7/Windows 8
Intel Core i7 or equivalent AMD
4 GB System RAM
50 GB free HDD space
GeForce 460, ATI Radeon HD 6850
High Speed Internet Connection
Steam account and activation required
If you plan on getting it on a console, you're only looking at hard drive space requirements. Both PS4 and Xbox One require 47 GB of space for the full install or 8GB HDD minimum. For those using past gen consoles, PS3 and Xbox 360 both require 8GB of HDD available but if you plan on downloading on PSN, you'll need 17GB's of available space.