Given Mercury's declining sales over the years (the brand holds a pitiful 0.8 percent market share in the U.S. - overall Ford has 16%) and the fact that its entire lineup comprises of re-grilled / re-badged Ford models, the announcement was no surprise.
Some had suggested in the past that Mercury should do what GM is doing with Buick - enhance its U.S. lineup with Ford's European models, but apparently that role is partially going to Ford with the new Euro-style Fiesta and Focus cars.
Ford admitted that the majority of current Mercury sales are to fleet buyers and customers purchasing through employee, retiree and friends and family discounts, which the company anticipates can be satisfied by Ford brand vehicles.