@Glommerwort We'll have more info soon. We do want to streamline our currency system overall, though.- Watcher (@WatcherDev) February 25, 2014
Clearly this topic came up during this interview with PC Games N, which emphasized a bit more the idea of the complexity of current currency systems. The bonus roll system currently in play in Mists of Pandaria was mentioned as an alternative to valor. "We think we can take the bonus rolls system and make it a little bit more intelligent, so that it tries to avoid giving you duplicate loots - and allow that to be the way players counteract bad RNG. It removes a little bit of the grind and a little bit of the awkwardness of the current valor system."
While no announcement has been made yet about how Blizzard will streamline its currency, it's good to know they're aware of and focused on the issue.