This would be awesome. I think it would be a nice addition to our current roulettes. The new Unreal fights are are a superb idea and I wish extreme content was more readily available. There are a lot of excellently designed/fun fights that a lot of players ignore since it isn't current content or part of a roulette system.
I use the mentor roulette in hopes that I get extreme trials so I can have the fun of doing fights with first timers. Party finder is great, but practice parties are rare once content has been out for awhile. I think if this content was more normalized (e.g. added to a roulette that people frequent) a lot of the stigma of them being intimidating would subside and players would get to experience a lot more fun fights on a regular basis. Plus I totally want to spend 99% of my time spamming this queue.
Anyways, thanks for the awesome game,
My regards to the team!