What ho,
Would you want the Dungeon Finder to span across your entire account?
By this I mean being able to select which character to queue up with, regardless of which one you're currently playing (assuming it meets the requirements of course). Once the queue is over, if you click accept you will automatically log onto your queued character and teleport into the raid or dungeon.
It would be nice to be able to play alts while waiting for the queue with your main.