This may have already been suggested -- I'm new to the forum, my apologies if so -- but I think it would be useful to be able to tap on a builder's hut and see a list of all of the upgrades/new construction that all builders are currently assigned to, along with a time until completion for each project to show you exactly when your builders will be freed up, in one easy-to-read location. Projects could be ordered based on the next soonest completion time.

Also, maybe tapping on an army camp could display the amount of time until your entire army training will be completed, as opposed to the amount of time until each barracks is finished training just the troops in that barracks.