Ability to bet gems in clan war
An awesome way to make gems in the future should be betting gems on clan wars. Each clan can use gems the individuals have and put them in a huge pile and bet that they win the war. Since it would be hard for each clan to bet the same amount the winning team should just get double whatever they bet and the losing team should lose all of what they bet. This way if my clan bets 1000 gems and the enemy bets 0 we still get gems if we win
I like gambling personally.......
but I don't think clash would be well served buy adding gambling. And let's be honest here. NO WAY SUPERCELL WOULD ADD ANYTHING ALONG THESE LINES. NEVER.