Oh gawd... I have so many I want to do!!
But it all really depends on time, money, skill and how much I work out over summer XD
In no particular order, my top 5 possible cosplays are:
~Major William Lennox - Transformers (Live Action Movies)
~Ninja (My friend and I are working on these right now XD we're going to be legit ninjas!)
~Haruka Tenoh School Uniform - Sailor Moon (this one is already done, but it needs to be fixxed up a bit. It's for sured for kcon10 along with my Michiru :3)
~Naruto - Shippu! Konoha Gakuen Den
~Secret Cosplay - Secret Series XD
I would like to have all of these and possibly a few more for Kcon10 and Scon11 :3