^I wish you luck with that. There is already some kind of commemoration event for the new single today. That one isn't a mini live but at least its a sign that the festivities have started. On the previous page ares was saying that once there's a single announcement, events follow. If luck would have it, surely one of those days will be convenient for you. But if anything they are performing in Sora Fest on the 29th and you could see them live at that. Enjoy your trip. Im sure you'll have loads of fun!
The costume for the upcoming single was unveiled at their live on the 10/24. I think it is quite nice. The girls look angelic. I have yet to give up hope on a winter themed concept.