... wow. Winter 2007? That came as a shock, seriously.
From the trailier, they show what looks to be Sauromugue Chapaigne, Rolanberry Fields, Sarutabaruta Fields before and after.
They show several zones after and before. If you watch closely, you see a zone, and then the screen "blurres up" fast, and you see some changes to it. Watching the vid again, it looks like Sarutabaruta, Rolanberry Fields, Sauromugue Chapaigne, Pashow Marshlands, Davoi, La Theine Plateau. So I'm assuming its Ronfau Forest (think you also saw a glimpse of Fort Ghelseba), La'Theine Plateau, Jugner Forest, Davoi, Battalia Downs, Rolanberry Fields, Pashow Marshes, Konshtat Highlands, Gustaberg, Sauromugue Chapaign, Meriphataud Mountains, Sarutabaruta
But seriously, if its in the past, adding all of the current continents again would be a GIANT expansion... it wouldn' tbe hard for SE to do since they just need to make changes to them, but for us it would be like, yeah...
Although I highly doubt they'd make all of the zones. But if the don't, that'd be kind of weird <.< I suppose they could do like CoP have, a "Dimensional Rift" or something in selected spots.