The rules of the Royal Rumble state, that once you go over the top rope, and your feet touch the ground, you are eliminated. We've seen superstars in the past, Edge to be specific, take this rule to advantage. Rolling outside the ring, and grabbing steel chairs, and other such weapons.
This feature would be exciting, and a tad bit more realistic in Royal Rumbles. Although we don't see this as often, the Smackdown vs Raw series seems to mimmick past tendencies from the WWE. Who knows, maybe we'll see The Rated R Superstar do this in the 2011 Royal Rumble.
Now Obviously, the Royal Rumble would become pointless in Online modes, if the play could simply role out side the ring, and stay there the entire match, but the last two Smackdown vs Raw's have had an option, where if you beat other superstars hard enough, or if you find yourself piling on lots of eliminations, you get a finisher. This finisher is an automatic elimination to anyone on, or near the ropes (that is, if the finisher is not reversed)
Instead of having the abilities, such as Leverage pin, and the old referee shield separate, they could completely revamp the modes, and offer packages. Maybe high flyer package, a powerhouse package, but what I'm getting at, is the heel/dirty moves package. Complete with all the eye pokes, rope pins, and referee shields. If your superstar (such as Edge) has this ability, they can say..get enough momentum, press triangle, and have it go into the automated cut-scene type feature. Have the superstar, say bang the opponents head against a turn buckle, and the proceed to role under the ropes, take a steel chair out from under the ring, and then slide back into the ring.
It doesn't have to go down exactly like that, THQ could do it anyway they want, they don't even need the whole new idea of the revamped abilities, but I feel this would be a cool new feature in the Royal Rumble mode, that can help show more realistic characteristics for Dirty characters.