If I could add just one simple quality of life change to the game, I'd add more info to the dig site popup list (at the bottom of the mines tab) and allow it to be sorted by dig end time. For example, it might show "9 hours" for the 2% Epic 98% Poor dig. That way, I wouldn't have to open multiple individual dig sites to find one that will work with my schedule.
Yes, and also more info for arenas (and a list of arenas). When I'm at the end of the level and out of mercs, only then do I start playing arenas. I dont want to get arenas that are less than 1B armies, and also only arenas that are on SE. (That doesnt leave much arenas, so instead i just complain in clan chat about getting stuck...)