I had a Paladin idea, it's more of a visual then actually anything mechanic wise but it can. Remember how Illidan in WCIII had left burning marks wherever he stepped? Well how about visually a Paladin being Righteous and infused with the Holy Light being heroic folks when they walk they leave a Light mark on the floor or their boots glow and leave a mark on where they walk. I thought that would be a cool iconic thing to add.
I doubt WoD would add it but it would be a nice cosmetic Paladin thing. >.>