I agree with ErikAston somewhat. As has been said the sales of this game obviously won't be hampered by the hassle in trying to get all the gear together to play it to its fullest. But for some reason I find it hard to believe that this game will reach 3.5 million sales or more, I think some of the stigma of the first game will carry over to this game and hamper sales. I believe the Crystal Chronicles game for the DS could hit 3.5 million sales, but not this game.
As ErikAston said this game has sold only 400k in Japan but if you look at the shipments of this game, they total around 1.36 million (they actually should be a little higher). Since these are shipments and not sales, we don't know if this game got close to 1.36 million in sales but I would assume so since in Japan the sales were as high as the number shipped. Supposing this game gets more popular due to the taking away of restrictions and I still see this game only selling around 3 million, which would be more than twice the sales of the original.
3
As ErikAston said this game has sold only 400k in Japan but if you look at the shipments of this game, they total around 1.36 million (they actually should be a little higher). Since these are shipments and not sales, we don't know if this game got close to 1.36 million in sales but I would assume so since in Japan the sales were as high as the number shipped. Supposing this game gets more popular due to the taking away of restrictions and I still see this game only selling around 3 million, which would be more than twice the sales of the original.
Sources:
http://vgchartz.com/worldtotals.php