Let us all go on a limb here and make predictions for the lifetime sales of announced upcoming PS3 exclusives! Even if the details are small to none just take a wild guess just like any other prediction, maybe even use the franchises name to predict.

My predictions:

GT5: 9 million

Uncharted 2: 2.5 million without bundles

Infamous: 1.1 million

Heavy Rain: 450k

GOW III: 2.6 million

MAG: 2.3 million if it does have not monthly subscription

iPet: 760 million

FFXIII Versus: 3.5 million

KZ 2: 3.2 million

GT5: 10 million
Uncharted 2: 2.5 million
Infamous: 2 million
Heavy Rain: 500k
GOW III: 3.5 million
MAG: 2 million
iPet: 500k
FFVXIII: 6 million
KZ2: 4 million

That's pretty pessimistic, right there.

GT5: 10 million

Uncharted 2: 3 million

Infamous: 2 million

Heavy Rain: 500k

GOW III: 4.2 million

MAG: 3.2 million

EyePet: 1 million

FFXIII Versus: 5 million

KZ 2: 5 million

Kantor those numbers are simply unrealistic, GOW was never that big and dont see why GOW III will suddenly sell 4 million.

GT5: 9 million

Uncharted 2: 3 million

Infamous: 800k

Heavy Rain: 650k

GOW III: 5.3 million

MAG: 4.1 million if it does have not monthly subscription

iPet: lol? 50k

FFXIII Versus: 4.5 million

KZ 2: 4.1 million

InFamous is optimistic, I think it will have low first week sales and high LT, ala Uncharted.

Now, for the one you singled out. God of War.

The original has sold 3.21 million units. Actually, it's sold more than that. The numbers are outdated. Notice how there is no week to week for Europe. Also note its disappointing first week.

Now, we move onto God of War II. VGC says 2.43 million. VGC is wrong. Again, no weekly numbers for Europe, and despite the NA opening week being triple that of God of War, the LT in NA is lower. This probably means that the entire game is undertracked. And according to IGN, who I find are rarely wrong, God of War II outsold the original. Of course, there is no evidence of this anywhere else, so it's probably untrue. Nevertheless, let's say 3 million LT for GoW2.

When was God of War II released? March 2007. It was officially the seventh gen. All three consoles were out, the PS3 had some great games on the horizon. Nobody was buying PS2 games anymore! The seventh gen consoles had sold around 17.5 million units together. And yet, God of War 2 managed to do over 500k in North America alone.

We tend to see sequels outselling their last gen predecessors: MGS4 is definitely on track to outsell MGS3, Halo 3 has outsold Halo 2, etc. This is especially true for the "hardcore" titles. With a proper marketing campaign and some legs, along with no piracy, I say God of War II can break 4 million. It releases near the beginning of the gen, as opposed to near the end, so has more times to sell, especially on Greatest Hits.

EDIT: I think it's far more ridiculous that you think EyePet, a crappy EyeToy clone, is going to sell more than every other game on a Sony console put together. 760 million? More than Wii Sports?

GT5- 9.5 million

Uncharted 2: 2.4 million

Infamous: 1.2 million

Heavy Rain: 850K

God of War 3: 3.5 million +

MAG: 1.6 million

Ipet: 900k

FF13VS: 5 million +

Killzone 2: 3.5 million

Well well well Kantor, you sure showed me :O

Of all the upcoming games GT5 has me the most interested especially in terms of sales, the worst selling one was in the 9 million range and now with online play the legs should be even better.

The "PS2 had larger install base so GT5 will not sell well" is simply bullshit, GT3 released at the beginning of the PS2's lifecycle and sold tremendously. GT5 will sell very well, 8 million at worst me thinks. ;)

Also all those exclusives bar Versus are coming from 1st and 2nd party Sony devs, they really are monsters in that department.

GT5- 8 million

Uncharted 2: 3 million

Infamous: 2 million

Heavy Rain: 1m

God of War 3: 3m

MAG: 2 million

Ipet: 1m

FF13VS: 3m

Killzone 2: 5m

GT5 - 8.5M

Uncharted 2 - 3M

Infamous - 2.2M

Heavy Rain - 2.0M

God Of War 3 - 3.6M

MAG - 1.2M

Ipet - 600K

FF13VS - 4.5M

Killzone 2 - 5.5M

And.......... Ratchet And Clank - 2.0