I'm thinking AOTY
SOTY and ROTY for Let It Go
and the film categories too, like soundtrack

i think SOTY is going to Happy until another better song comes up

I think only soundtrack of the year tbh. When was the last time a soundtrack got nominated for AOTY?

2002 for Oh Brother Where Art Thou?
And it won!

Frozen has a strong chance for Album of the Year tbh, nomination and win at this point.

Let It Go could also get nominated for Song and Record.