I would be really surprised if it did open before world showcase at 11am. They are out and doing cleanup work and stuff back there. Malestrom had huge lines after frozen came out and that didn't change anything.. it would cost more to get world showcase ready for visitors earlier and they aren't going to let people walk past stores unopened and not able to sell you things...
now will world showcase change it's hours? that should be interesting
my guess.. for only 19.99.995, you and your family can have 2 hours with anna and elsa, dry ceral breakfast and be in norway long before everyone else!!!