Just saw this on twitter from WDW News Today. It's also showing up on various boards but with no official word I'll label this rumor for the time being.
Beginning March 15th and lasting for just a few days, guests parking at the Magic Kingdom or Epcot will have the option of paying for a premium parking space closer to the park entrance (or at least a monorail or ferryboat). The charge for the premium parking is $15 above the regular $20 charge. There is no word yet on what the charge will be for resort guests or annual passholders, but we would assume that they would pay just $15 since they are already offered complimentary regular parking.

The exact locations of the premium spaces are unknown at this time.