Just announced today, apparently, Aliens is playing as part of their regular cult classics series "In the House".
Personally, I'm not sure about going in costume for several reasons including how it is on Remembrance Day and some people strongly disapprove of wearing imitation/fictional uniforms on the day of remember of people who actually died serving their country.
PS How did everyone celebrate Aliens Day (4/26)?
PPS I still haven't bought more screen accurate boots or finished my pulse rifle.
PPPS Working on improving my model making skills in anticipation of assembling and painting my Aliens vs Predator: The Hunt Begins board game miniatures.
EDIT: They changed the date to 25 November.