I agree the rewards need a significant boost. There are attractive glamour sets and a few mounts after a large amount of runs/wins but then what? Wolf Marks should be exchanged for variety of items, I like the idea of everything you listed.

In my opinion the long queue times keep me from queuing often unless it's a weekend and I have all day to wait.

There should also be some sort of "adventurer in need/needs competetors" type of reward set on every frontline mode that isn't shatter.