Less than 1% (before 5.1) representation is viable? Smarter and better PVP players than us have decided to change classes rather than make Rogues work in a comp. What do you think that says?
That being said, we'll have to see where representation lies after 5.1. I don't see it going up much, everything thing that a Rogue does is done better by other classes. We still probably be taken for smoke bombs in RBGs though.