I think it's possible,you could reverse the direction of the start in Epcot and head out on Disney Vacation club way to a short stint on Buena Vista Dr to reach Disney Springs.After running through Disney Springs you could maybe head to DHS and AK to then head back to Epcot.This would be for a half marathon which as another poster mentioned has too much time on World Dr.I would be all for something different as the half course doesn't have much appeal to me,but going to Disney Springs would mean no MK as its just too far away,so no monorail to get to MK for spectators and who knows if the mileage even adds up.I don't see Disney changing it as there's 26,000 people running the half so its not like its not a popular race,I would love something different but I can't see it happen.It won't happen for the full either as that's a perfect course.