I have not booked my hotel room yet, but barring any unforseen circumstances, Russia should be there.
Katsucon '11: Russia (with bouquet of sunflowers and hip pack with flask)
Otakon '11: same
2012 cosplays: same as for 2011 (I lost the sunflowers at Katsucon '12, but still have the hip pack with flask, and am also probably the only adult/modern-day Russia under 5 feet tall)
2013 cosplays: same as for 2011-2012
2014 cosplays: same as for 2011-2013, but going to San Diego Comic Con as well besides Katsucon and Otakon
2015 cosplays: same as for 2011-2014