I think there are a number of things that should be changed with how stuff is organized for Duty Roulette.
First off, please for the Expert Duty Roulette, since you are only adding 2 new dungeons, please leave the old ones in there. people are getting bored because there is limited content with the Expert Duty Roulette and simple not run them because of that.
Next issue is that there are story missions that should either be part of the Main Scenario Duty Roulette.
Please move the following to Duty Roulette Main Scenario.
The Chrysalis
Steps of Faith
These are critical story missions that that a bit longer to complete. I often see people leave these missions when they come up. It would give more variety to the Main Scenario as well. Main Scenario would become more for helping people complete the story then the running the 2 dungeons because people need points. Duty Roulette Trials would get more variety because we would not be running these trials all the time as well.