Okay so seems as I don't see one here I'm just going to start a thread here with all the information I know so far about Caduceus Rise.
There are 2 expert versions, each has 5 bosses unique to that dungeon and then both end with Caduceus himself.
There is a master version which has 14 bosses according to what I heard on the PTS (also heard 11 from other sources), I haven't done this myself. But he has all 10 bosses from the expert versions, 3 new ones and also finishes with Caduceus.
The dungeon itself is huge and has some very nice scenery.
The loot from the expert versions is in tune with other t2 loot so there is no free easy loot here.
When you go to the dungeon entrance you can enter to the left or the right to get into two different dungeons with the different bosses in.
The Rapid Assault is 40 minutes.
Oh achievements, I'll log the PTS and make a short video showing these in a moment as there are a lot of them!
Here are some videos I took last night while in the right hand side dungeon.