I loved the old sticker logo and I personally don't think those whiners 'over there' have a pot to piss in regarding copyright infringement.
However, it isn't worth it if they want to get nasty. Not worth the time or potentially the money.
There are too many good options for a new logo and way too many creative people around here with good ideas to not come up with something new... that will involve zero heartache for anyone.
Lots of good ideas have been posted so far. I personally think a combination of the flag with a fire selector is a fantastic idea if it is done right. A realistic machined look with the flag would be badass.
I can't design anything to save my life, but I'm looking forward to seeing what everyone puts out! Even if you're like me and design impotent, it wouldn't hurt to put an idea out there. Someone with some skills might pick it up and run with it.
I missed out on the first round of stickers... I was complacent and just figured they would be there when the time comes. I'm looking forward to the new sticker (and hopefully a hoodie and a winter cap someday)!