The AU started by my story "All Hail Princess Fluttershy," and will include stories for all the mane six as my take on how the princess thing COULD have worked. I, ChangelingQueenDragonfly, will write the main stories, but anyone can write a sidestory. (Look in my blog post All Hail Princess Fluttershy, the Princessverse, and Sidestory openings! for more info)

The order the mane six will ascend:

Fluttershy
Rarity
Applejack
Twilight
Rainbow dash
Pinkie Pie

Each will have their own way of becoming an Alicorn,(or in one pony's case, revealing they are one) and I hope you are exited to fin out!(Also find out who is already an alicorn--and no, it's not Twilight.) But seriously, if you really want to know, it's Rarity.