Brawl passed 1.3 mil 1st day right? Why does Kojima think MGS4 will break 1 mil first day? It seems highly unlikely. It's hyped. But not HALO hyped.
It will however break 1 mil first week.
Gta4 will break 1 mil the 1st hour!!! (i will make a bet on that!)
Metal Gear has a decent shot at going platinum on day one, especially since its arguably being hyped more than any other game in the series, with the possible exception of the first Metal Gear Solid game. I wouldn't necessarily bet on it, but I wouldn't discount it either. As to Kojima, I think a large part of it is sheer hope, since from everything I've heard, it's a damned expensive game to make. Didn't a Konami executive publicly say that it has to sell a million copies day one to ultimately make a profit?
As to Grand Theft Auto four...no takers.
And on topic: some developers prefer not to make sequels to their games, no matter how much they sold, just because they value the game's artistic integrity over its profitability, and don't wish to cheapen it with an inferior sequel. And at the end of some rainbows, there's a little green man with a pot of gold just waiting for you.