Glad you like it! I've transcribed the intro (0:00-0:12) based on the extract I've heard from Lindsey Stirling. From 0:12-0:21, it's the official version. Then, I've tried to guess what comes next while respecting the spirit of Lindsey Stirling's music and what I heard, as we all expect her video on Friday!! I totally agree with your idea of Epic Battle, it's her style, I imagine an inner battle with her evil twin/angelic twin, or her inner demon in the middle of Egypt.