Here's how this goes: somebody makes a wish (anything about gaming), and the next person grants that wish, but then "corrupts" it - and then adds their own wish :)

Rubbish example: Person 1: "I wish that Mario Kart was on the PS3"

Person 2: "Granted. However, the game doesn't contain Mario, and requires paid DLC for all cups past the mushroom cup. I wish that the Xbox 720 was announced to have a 2012 release" (and so it continues)

I'll start out: I wish that Half Life 3 was released in 2012 

Granted, but it will be developed by Quantic Dream.

I wish Earth Defense Force would outsell Call of Duty.

Granted, but the entry that outsells the next Call of Duty is a reboot set in present-day Iraqistan.

I wish that the next Call of Duty were in Space.

Granted, but it's gonna lack multiplayer and the main story will be cut in half.

I wish a new Chrono game is created by the original staff.

Granted, but Nomura is in charge of the development and is doing character design.

I wish that Final Fantasy VII would finally be remade so that people would shut the fuck up about it once and for all.

Granted but now there will be FF VII-2

I wish a new Hero for GoW4

NVM. You guys are so damn fast I'm starting to think you're all geth.

Granted, exclusive to the PS3!

I wish that the next Pokemon game was the Pokemon MMO!

Granted, but it's going to be a Wii exclusive.

Edit: Darn you, Carl!

Granted, but playing willl cost $150 monthly.

I wish a the next Mario Kart is just like Double Dash.

Granted, but it's just a port of Double Dash to iOS.

I wish Sakaguchi would return to Square.