I don't know if anyone else caught this, but according to the October solicits it looks like we have an idea what all those "This Is War" teasers were about about.
"Marvel Universe Vs. The Avengers #1 (of 4)
JONATHAN MABERRY (W) • Leandro Fernandez (A)Cover by aaron kuder
• In MARVEL UNIVERSE VS THE PUNISHER we journeyed through the ruins of our world.
• In the Bram Stoker Award-nominated MARVEL UNIVERSE vs. WOLVERINE we witnessed the fall.
• MARVEL UNIVERSE VS THE AVENGERS is the war. Some worlds can’t be saved. All worlds can be avenged."
From http://www.comicbookresources.com/?page=article&id=39646 13 comics down.
What do you guys think about that idea?