@Sylvain

Sounds interesting, especially the change to 'Expert' (and addition of 'Savage') roulette... i.e. actually making it a 'hard mode' of the existing dungeons, instead of just the 2 'new' dungeons. I would also love to see this retrospectively applied to older (e.g. level 50) dungeons, as a lot of them are generally more interestingly designed than the current dungeons. Of course, this would require a fair bit of upfront effort, and new systems to make dungeons scalable etc. however in the long term it would mean that all dungeon designs could remain 'current', mid-core / hard-core players would have something to do outside of weekly raids / tomestone runs, and the existing easy mode dungeon progression (for people playing catch-up, etc.) could be preserved.

As for the 'Call for Arms', it sounds a bit like the adventurer in need, but yeah it would be nice to able to queue as several different roles (especially for 24 mans) in order to get the fastest queue without having to try and work out that you are actually waiting on a Healer / DPS (it happens..) even though it says Tank in need.