I've made a forum post about how I think Ancient Trials should be updated, with lots of suggestions. I'd love to see this be improved upon so i made my suggestions on there because it couldn't all fit into 1000 characters... at all.
https://manacube.com/threads/ancient-trials-has-been-untouched-for-a-long-time-and-it-needs-a-change-its-dead.56633/
Love it if you could give it a read and leave any comments you have :)