Roulettes need some work.

[Lemuria]

I've been asking for them to break up the roulettes a bit more ever since 'Hard mode' roulette topped 10 dungeons while 'Expert' only had 3. I don't think SE cares enough to make any changes at this point.

[Dante_V]

I agree with everything besides coil/extreme roulette which would just be a nightmare that would likely not even be worth queuing for. In reference to main story roulette, I think the two new main story duties in HW should be added to this roulette to allow for some variety.

[Akava]

My biggest compliment is tied to Expert roulette only being two or three dungeons. Regardless, it always becomes boring and the old set of dungeons become irrelevant. I would like to see something like they simply add on to the existing pool for Expert instead of replacing the pool with 2 new dungeons. That way, by the 3rd set of dungeons we have between 6 and 9 dungeons in the roulette. It'll help keep it fresh and they don't really have to do a lot extra.