With this update, war members will be able to vote an attacks as "War determining attack". And that attacker will get extra bonus, credit or gems for that. And no one gets to vote for themselves so as to keep the poll a fair one. It can also include defences. Players can vote someone's defence as "war determining defence". And just in case some one does not vote, "War determining Attack/Defence" will, by default, be the most heroic Attack/Defence.
I hope you get it included in the game.
Thank you.