Unless there is a hidden vocal, I'm thinking it's not a single at all. I believe Enjoyed suggested it possibly being EBW 13 in another thread, and I kind of agree. It has dance floor flavor, but to me, it still feels too empty for it to be featured as a single, let alone the first single. I don't know, maybe the essence of this track is flying over my head.
On the other hand, it's my belief they are holding back with 'Eve of Destruction'. This would be my guess for the lead single, especially since it features a guest vocalist. From a marketing perspective this is the logical choice. Additionally, there seems to be a lot of investment that they had Aurora filmed for the actual live visual, (which ultimately might be part of later released music video).