My plan is to see the 5:00 CP and to be at MGM by 7. There are 2 showings of Fantasmic that night, with the later one being at 8:30. I thought that should be plenty of time. But, I do like the idea of switching them. CP would be over just in time for Illuminations. Is there a special Illuminations for Christmas? If so, I'll definately switch. I love Illuminations, but thought the kids may like Fantasmic better.
ETA: This may not work because I'd like to do the CP dinner package and if we do, we'd have to be eating in Epcot about the time the lights start. if we don't get the package, we'd have to be in line the whole time to get seats