Well it makes some sense but they would have to discontinue the Air and place the MacBook with the Air design in it's place since the Air has been rendered redundant with it's similar specs and now similar design; additionally there is still some usage for the MacBook Pro's additional features, no matter how Apple's perspective may seem. It would make more sense to transition the design to the MacBook instead of the MacBook Pro.
In any case, I'm expecting new MacBook Pro to hit the streets since the ones out there are old and regardless of redesign or not, they do need an upgrade.