Honestly I love the idea, but it only benefits one style of play! On top of that it would lose developers money I guess so not a chance. F2P players would love idea but won't happen. Sorry bud
They won't give us anything for free in mass amounts. Hence why we only get xtals/Circles etc rarely.
U can get free nobility by doing quests over and over again. Im not saying give out rediculous amounts. You get 5 free mith every now and then but only with a bombardment...give a free nobility every now and then only with bomb. Thats 2 styles of play to get free nobility.
I don't see this as a viable idea. While many would love to have this, I think could/would substantially reduce the developers profit through in game purchases.