Here's the deal....
I live in a small town => no pc games shop here.
I ordered Cataclysm from a town 15miles from my town.
A friend is gonna pick the game up for me @ 00:00 +2 CET time, which is +1realm time ,therefore Cata comes in 01:00 my time.
He's gonna call me and tell me the CD-key so I can Upgrade the account,but I wont have the content of the box yet.
Is the launcher gonna update the game itself and when?(how big is the last part)
I hope you understood my concerns and thanks in advance for the info provided