I have an expensive idea. Here goes.

Track tournament stats through Companion.

This starts with a possible purchase of ManaBox (wait!). They have synchronized deck databases in Beta. If we selected a deck before tournament, companion could accurately track the win rate, and display it. It would be worth considering up to 3 previous edits, something that would need to be added.

Anyway, very expensive. It would provide a Meta deck stream is one benefit for the longevity of the game.