I defintely agree with the thoughts on Frozen joining the xmas parade, it's bound to happen.
As for meet & greets with Princes out, I think we can take a look at what happens at Halloween and assume it will carry over into Xmas as well. Now that fairytale hall has changed over, there's a few options:
-Anna & Elsa go back to greeting on 1 side of the room, put Aurora & Phillip on the other. Other side of the hall has Cindy & Charming and Punzie & Eugene.
-Put Snow & her prince out in the park randomly somewhere (can't be where she does daily greets since Jack & Sally are out there, and they are confirmed as back this year)
-OR Put Snow back with the dwarves the way it was in previous years
-Anna & Elsa's side of the hall stays the same, other side of hall has princes out and Snow & Aurora & princes greet somewhere randomly in the park (in 2012 Aurora & Phillip were out by the new fantasyland walls).
-A & E's side stays the same, screw the other 2 princesses, less people to pay, right?
-A & E add Kristoff in and greet with him as well.
Personally, I think Kristoff being added in is NOT going to happen, but who knows, Disney might realize it would pull away from the Flynn/NBC crowds & balance things out, but it might now, it's also 6-9 more people to pay per party night. We'll definitely be seeing Flynn though