There are rumors going around that Disney is going to officially make Elsa a lesbian.
http://wegotthiscovered.com/movies/elsa-probably-going-gay-frozen-2/
Which isn't happening, sad to say. Sure, people of all ages saw "Frozen", but it's little girls who are buying all the "Frozen" merchandise... or rather, the parents of little girls. There aren't many people on this planet who will buy their grade-school age darling a lesbian costume for Halloween!
The closest they'll come to that is to give Elsa a "best friend" rather than a boyfriend, so that Anna won't be leaving her all alone if she marries Kristoff.