Here are some ideas for future updates.

1. Reduce cost for upgrading walls level 5 and above by 20% to 30%
2.Reduce training time for wizards to 4 or 5 or 6 minutes,healer to 8 or 10 minutes,dragon to 20 or 25 minutes and P.E.K.K.A. to 30 or 40 or
50 minutes.
3.Reduce upgrading time for troops,defensive buildings(including Hidden Teslas excluding traps)
4.Ability for leader to select or choose members for clan wars.
5.Ability to change clan name
6.Official clan alliances or rivalries.Not just writing in clan description.
7.More ranks/roles such as master,high elder.
8.Increase production of gold mines and elixir collector or dark elixir collector by 25%/50% per hour
9.More or higher loot bonuses in leagues from Silver I to Master I
10.Addition decoration.Malaysian flag

Thanks if reading this Supercell.This ideas might be the dream all clashers wants to come true.