They'll probably come up with some new dog and pony show. They realize no one drives for base rates (or drives for long) as it's not worth it. They know the current rates aren't sustainable for drivers, thus the need for gimmicks like Quest.
Raising rates would solve a lot of this issue and save them headaches, but it's been made abundantly clear that ain't happening.
It would be nice if they did do Metals again. If they try to make Platinum 1.4X in one zone they're on crack.