Personally, I'm curious what the fate of Chase's Marriott Rewards Premier Business VISA will be.

It's very clear what the upgrade path is for the personal Chase Marriott Rewards VISA, and for the SPG American Express. Both (if you upgrade the Chase VISA) get 6 points per dollar spent at Marriott properties. But the Premier Business VISA is stuck at 5 points per dollar spent and there's no indication it'll change since Chase doesn't have the right to market business cards in the new program.

If any card of the three I hold is on the bubble, it's the Chase Premier Business VISA, which may be a legacy orphan for those of us who continue to hold it.