I am currently writing a fanfic called "Twilight's Shadow". It is set after EG 2: Rainbow Rocks, and introduces several new elements: how Human Human Twilight becomes involved with Equestria; the 1st meeting of both the pony and human forms of Rarity, Pinkie Pie, Rainbow Dash, Applejack, and Fluttershy; and the gravest threat yet to the peace and stability of the pony and human Equestrias: Dark Twilight.
The drama will begin soon-but not yet. I invite comments and questions about the specifics of the storyline, and I will answer your questions to the best of my abilities.
May the magic guide you!