The answer to this will come soon enough. Some of the quests for the area already talk about the perpetual winter (ala Frozen) that has fallen on the area over the last 5 years. I do look forward to that. May have something to do with the crystal tower, or other changes as that was one of the areas heavily affected by the attacks in 1.0.No idea where the snow came from in 2.0 however.
I am also not sure if this is the original dragonhead rebuilt in a more military style, or a relocated dragonhead.
It will be interesting to see if that gets answered as well.
One of the unique things in this game is when they ended 1.0 and started 2.0, they created a story and quest line that covers it.
As far as the zone sizes, I was in agreement during the survey that I would rather have more detail over giant expanse. The odds of getting those giant expanses back are slim to none. However if PS3 is ever dropped i would not put it past them to have newer larger zones. Until then don't expect it.