That would be nice but they haven't done that in the past. I would prefer if they would launch like a unique contest and not just "guess the BTC prize" or "guess the correct score". Both are fun and easy to do but would be cool to see something else than the usual because that will also increase the amount of participants.
Considering contests like way of building up bond with community, they don't actually need to be too creative. If old and current methods work fine, they can use those methods and creative methods don't guarantee any success or better effects.
Any new marketing method needs to be tested in real use and perhaps you won't see it too often. They don't need something cool, but need something works well.