Any effect status are difficult to see… You have more and more effect statues (like one new every kingdom so every 3 months). I think you should move to small icons (like traits) that you will put on the right where the traits have been before.
Or remove the trait icons: difficult to see and even if you see them I’m not sure everyone know which trait matchs which icon (cf your argument about removing the kingdom shield). So it could give some place to put there the status icons too: on the left, the positive ones and on the right the negative ones.
Because it’s important to know if a troop has unlocked his traits or not you will have to add something/somewhere. Maybe a number (in a star or whatever form) should be enough (0 = 0 trait, …, 3 = 3 traits unlocked) just between Attack and Life. Or a colored “>” (like the one for the Event troops but horizontally) for each trait unlocked at the same place.
So that means the event bonus icon have to be removed, which is not so useful… almost useless during battle (before battle ie scouting it’s great).