Another point about this game is that it is a sequel (of sort). I think most of it would be sold to those who already have FFXII on PS2. Sure, few people will pick up this game even though they have never played FFXII before, but they are in the minority.
If we look at FFX and FFX-2, it's a similar situation, except for one major difference, X and X-2 are both on the PS2. Gamers didn't need to buy a new console to play X-2. Whereas for RW, gamers either already have a DS, or they will have to buy/rent/steal a DS to play.
So I'd say 95% of the worldwide sales will be sold to people who:
1) have played FFXII, and 2) have or have access to a DS, and 3) have the desire to buy this game.
4
If we look at FFX and FFX-2, it's a similar situation, except for one major difference, X and X-2 are both on the PS2. Gamers didn't need to buy a new console to play X-2. Whereas for RW, gamers either already have a DS, or they will have to buy/rent/steal a DS to play.
So I'd say 95% of the worldwide sales will be sold to people who:
1) have played FFXII, and
2) have or have access to a DS, and
3) have the desire to buy this game.
That's the "1.92 million units" question.