We should probably start trying to keep an official headcount so we'll know for sure how much space we'll need. I made a spreadsheet for just that, with the names of everyone who's posted in this topic. If your name is missing, feel free to add it in. If you won't be going, just delete your name from the list. If you're unsure, put your name down and a 'maybe' under attendance.
I also put a column down for significant others and children. For the former, answer with a yes, no or a maybe if you're not sure yet. If your SO is a member on MP, their name should be on a separate row from yours. For kids, you can just put the number of children that'll be with you.
You can find the spreadsheet here~











