On the Official Playstation Blog where Dylan Jobe the director of Warhawk announced details of the 1.3 patch, the user mikehc69 had posted the following comment...
Theres been alot of talk of a possible expansion called "Operation Broken Mirror" being released toward the end of March. Its popped up on various PSN release date lists. Any truth to this rumor?
Could it be the fabled SNOW MAP we have all been waiting for??"
Dylan Replied with the following:
"hmmm….that ASCII art looks interesting…"
Take this as you wish, but it looks like he's hinting at something here. Especially since when you click the ASCII art in his blog post, it brings you to a broken mirror image.