Make your village stand out and weather/troop vulnerablity
How bout being able to change the color of your walls for x amount of resources but depending on the level of your walls will determine which colors and what shade will be available to you for example lvl 8 walls are black so you can only change your lvl 8 walls to another dark color like burgundy or navy blue or dark green and if you have lvl 5 walls you change them to silver so they look like steel or any other metallic colors and lvl 7 walls you can choose clear so they look like glass . Imagine bright red lvl 11 walls to match the town hall 10 .
I had a really neat idea imagine searching for raids and one guys base is raining/storming and another guys base is windy and another is snowing/Icey and another base is scorching hot from the sun then you got your neutral weather were your troops aren't effected by anything so depending on the weather and what troops you have with you will determine how it effects them in battle for example archers will miss some arrows in windy conditions causing them to do less damage , snow/ice causes goblins to run slower or slip , giants have less health in extreme heat barbs do less damage in extreme heat , heroes are not effected by weather , storms make air units fly slower have less damage , hogs run slower in the snow but no weather conditions will enhance any troops stats , weather patterns will change every few hours maybe every 6-8 hrs sounds good . Should make raids a little more interesting and there will more strategy involved .