I just had a crazy idea! So i heard about frozen 2 coming out some time. I came up with a very... strange... theory. If you think about it Elsa has ice powers so in a way she controls winter. (This part doesn't have as much to do with it but...) Elsa has white hair which is the color of winter and Anna has orange hair which is the color of Autumn. In another picture i found of frozen 2 they were surrounded by leaves. I'm wondering in Anna somehow will be able to control Autumn? idk. Just a guess.