Because I haven't seen a Sailor Moon fanfic that is both new and worth reading apart from DKA and BDSM since forever. Idea #1: Usagi is completely defined in canon by her past life. It's all about being Princess Serenity and being the heir to the Moon Kingdom and whatnot. But what happens when you stick another layer of problems on Usagi through her present life? Say for instance that she's... *Rolls a die* ...the half-succubus daughter of Morrigan Aensland? Or something like that. Give her something from her present life to tie her identity to, like Nanoha picking up a Green Lantern ring before she becomes a mage in the 2814-verse, and see where she goes with that, how she balances her responsibilities and how the Senshi react to that. Maybe she'd rather follow in mom's footsteps than make herself a crystal kingdom, for instance.