Guild Wars 2

So from http://massively.joystiq.com/2012/11/12/guild-wars-2s-lost-shores-content-primer/

A party of five will enter the dungeon and be faced with a random set of three of these dungeons at a time. Upon completing those three, the party will be transported to a hub to rest, repair, and merch — and the difficulty scale for the dungeon will be raised. Every time the difficulty scale is at an even number, players will face a special boss encounter.

So If I understand this right

• Ppl enter dungeon , diffculty 0
• People complete 3 mini dunegons , ,get sent to rest area, which is still inside dunegon
• They start dungeon again, difficulty raised to 1
• They complete 3 mini dunegons again ,difficulty raised to 2 ,this time they face a boss
• They leave the dungeon , go back to LA
• Next day when they comeback , Will the difficulty be 0 or 2?