http://www.arena.net/blog/beta-development-update

Covers a few various topics, including:

* Downed And Defeated
* The Compass
* Meta-Events [Bigger In Scope Than Dynamic Events]
* Hidden Treasures
* Boons And Conditions



I won't quote the entire thing, just some points I found interesting:

Re: Downed States

Quote:

The first three skills that a player gets while downed are determined by their profession while the fourth skill is shared by all professions. This fourth skill is used to call for help and make you invulnerable for a short period of time. While playing, we found that it was possible to get into a situation where you were down, but there were no enemies around to either finish you or that you could use to rally. This left you watching yourself slowly slip into unconsciousness while there was nothing you could do to stop it. Needless to say, this was not a particularly fun experience. To fix this problem, we turned this fourth skill into a channeled heal that is interrupted by damage. This means that as long as there are no enemies around to damage you, you’ll be able to revive yourself.

Re: Hidden Treasures

Quote:

Some areas will test your platforming abilities, requiring you to make a series of difficult jumps before you find your treasure at the end, while others contain dangerous foes that will stop at nothing to see you dead. We hope that these experiences bring a new level of challenge for the best Guild Wars 2 players and provide everyone with a chance to test their mettle against a different type of content. Whether you are fighting off bandits or using the broken remnants of the Great Northern Wall to climb to a hidden chest, we think you’ll find these areas to be both fun and formidable.

Platforming elements? AWESOME. Exploration will sure have a bit more variety than the old GW1 method of stand still/spam your skillbar - wash/rinse/repeat.