Good Choice!
I love the new style, and I'm so glad the series isn't dead! For awhile there, I think a lot of us thought the Rose series was finished with Twilight, but thank GOD we were wrong. This song is as awesome as the first 3 (Twilight was a bit sub-par in my opinion) and I can't wait for the next one.
If you're looking for suggestions, then mine would be to make a darker Rose epic, like a main boss theme or something. A slightly darker feel would absolutely KILL ME, because the whole idea of an RPG fight is the struggle, and if the struggle is too light it carries no weight, and becomes a joke. The darker feel brings the feeling of actually putting something on the line, and makes things much more epic.
Despite what I said, this is still AWESOME!
=Psy_Slay=