Friend suggested this, so I'm posting it for them.
They suggested that, as an idea for dungeons/pledges, tanks would get an extra undaunted key or better loot in dungeons, just as a way to incentivize tanks and speed up the queue waiting times for DPS players. There are, of course, some people that might queue as tanks, just for the extra boost/items, but there might be a way to work around this.
Any ideas/suggestions are greatly appreciated!
~Kado
if I could make another character, their name would be Cries-For-Character-Slots. AKA, I need more.