I *might* get to go. I'm planning on going. It's strange, since I live a lot closer to Anime Expo than to Otakon (I live in Arizona). I wasn't able to go to Anime Expo this year because of lack of money, but I might get to go to Otakon because my online boyfriend, who lives in Philedelphia, has a tradition of going to Otakon with his nephew and wants to fly me out this year. So far, I'm planning to go, since he is paying the way.
If I do wind up going, I will be cosplaying Hikari from Haibane Renmei - with a Halo Mold (styrofoam gold donut-looking thing on a stick)... So, look for a girl with a long browinsh velvety skirt (I'm doing Hikari's Winter outfit), little wings, a doofy halo sticking up from her head, and a styrofoam gold donut-thing on a stick. Some people cosplay Haibane, but, I don't think it's a cosplay that's terribly common yet, so... I might be distinguisable...
Also, I want to cosplay Rem Saverem from Trigun (just be in a white shirt, jeans, black wig, holding fake red geraniums... and wearing a little SEEDS pendant necklace I made) and Vash from Trigun (I doubt anyone will recognize me as Vash, though... lots of Vashes at cons). My Vash coat has been signed by Youske Kuroda, though - got that at last year's AX - so, if you see a bloned girl with a signiture on a panel of her Vash coat, that's probably me.
However... I do have a cosplay I'll be doing, if I can make it work, though I'll probably only do it breifly becaue my neck will hurt... I don't think ANYONE has ever done this cosplay before - PLANET GUNSMOKE. I made a landscape-diorama thing to be worn on the head. It's a styrofoam base stuck to a bicycle helmet, painted in desert colors, desert rocks glued to it, a lightbulb for a "Plant", and little character figures I made out of Sculpey clay. If I can get that thing on the plane or figure out how to mail it to my boyfriend marked FRAGILE before the con - I will be VERY distinguishable wearing that.
So, if you're at Otakon and you see a blonde idiot wearing a Planet Gunsmoke landscape on their head - I almost guarantee you that's me, so shout out "SHADSIE! HAIBANE SHADSIE!" and I'll come right over!