This is kind of a late reply, but I'm hoping to be Haruhi for at least one day, depending on how comfortable I am in cosplay, and depending if I get my cosplay in time. I'd love to see a Nekozawa! ^^ And if you are planning on attending Otakon, if you haven't already been to the Otakon boards on their site, that's a good place (though the Ouran section isn't too active at the moment).
Emmy Altava (Professor Layton) - 30%
Maya Fey (Ace Attorney) - 20%
Satsuki Kiryuin (Kill la Kill) - 10%
Kazuki Makabe (Soukyuu no Fafner) - 40%
[ ] Katsucon 2015 - Maya, Kazuki, Emmy, BlackRose
[ ] Zenkaikon 2015 - Maya, Kazuki, BlackRose(?)
[ ] Otakon 2015 - Maya, Satsuki(?), Kazuki