Hmm, English text but Japanese voice overs (unless my ears misheard over the convention noise). I wonder if 8-4 Play is helping out with the localization, specifically the English voice overs. They mentioned a big project in their last podcast, and I'm having a hard time thinking of what else it could be.
Xenoblade is my favorite game of all time so I have 1 question before I watch this video, Spoilers?
Nothing beyond the first continent. It's the same grasslands that has been on display many times. Given the massive size and the minimal story of the game, it would be somewhat difficult to spoil. That is unless seeing land marks is one of the defining features of Xenoblade for you. If that's the case, best not look.