Twilight Sparkle returns home after disappearing one day, six months ago. The Twilight that came back, however, is different. She may appear strange to her friends now, but her tale is even more strange.
When? Not too sure. Either some time mid-summer - if not that - than early 2016. Why such a long wait after the first date? Because I ship out to boot camp July 28th and that'll last four months at least.