I know it's not the first time it was mentioned, but can you please do something for Big Heroic in Barovia? I know it's old content but whenever there is a legacy quest that requires finishing heroics in that area, people always wait really long time for it to happen. It's supposed to be activated once an hour but when there are 1-3 instances, you know it's only making things worse, as it's almost guarantee to wait there.
Have it happen once every 15 minutes, give us a way to manually active it (like shrines in Omu) or just add a timer to the area. It was already in the game when Tyranny of Dragons happened in leveling areas. "Dragon will return in: xx:xx" - "Yester Hill will be haunted in: xx:xx" or something like this... Surely it's not something that can't be done.