From Famitsu: http://www.famitsu.com/news/201103/03041005.html
- There will be bonfires in the gameworld. These will heal players and act as checkpoints. Finding bonfires is key if you want to explore everything.
- There are environment-specific moves. For example, if you're above an enemy on a ladder, you can kick him down.
- There's an "iron body" magic in the game that makes you extremely slow, but also immune to staggering (and possibly damage -- I'm not sure whether that's the case).
That's all the worthwhile stuff I could find, but it would be cool if someone fluent in Japanese could check the article out and see if I've missed anything important.