Can we have another defensive rune tree?

assassins, adcs and mages all have their respective trees made for them, i think it would be completely fair to add another tree for tanks? i mean, there are so many types of frontline champions (tanks, bruisers, tank supports, wardens, peelers and so on) and all of them get 1 very mediocre tree, meanwhile damage dealers get 3 very powerful trees?

it's preseason, you guys should consider having second tank tree, one for bruisers and off tanks and one for full tanks and supports, it would definitely help making damage at least a bit less broken