Given that I will soon run out of things to do as I approach max TH13 other than grind walls which will take some time, how about a new building that you donate all types of loot into maybe called something like a “Builders Guild”, this fund over time will deplete and can be raided like a regular storage etc. You could have targets to reach (daily / weekly / monthly) in reward you could get reduced hero healing times and the occasional potion etc.
You could make a level counter like the current one which is just and indicator of exp, this could be on your profile and annotate it like a clan badge and as the more you donate the more your reputation improves you could over donate to improve your stats.
Hero healing times are still pretty high at max level so would be a good incentive if nothing else.
I thought this might get some more comments as there are plenty of maxed bases out there with nothing to do but legends league or wall grinding, this would give everyone something to do no matter your trophy level and would be good addition on your profile. Plus reduced hero training times!
