I think this preview has completely thrown away any uncertainties I've had about this song - mainly trying to figure out how all the pieces would fit together without sounding like it was put together by someone with extreme ADHD. To me, this song seems like it may have the style of Across the Line did, where it starts out low-key and simple, then keeps building and adding and becoming more complex.
The 34 second preview had me a little worried that LP's new direction may've lost touch with the core "we may change the styling of the songs but we'll always have that consistent feeling that you'll know this is a Linkin Park song" but hearing Chester start in, the drums, and just everything in the MOH trailer assured me that they still have that basic epicness.
Another thing that I was hoping wouldn't be lacking is the song/album's ability to be blasted through the car speakers with the windows down and rocking out. Though my favorite tracks are others, "Don't Stay" "Papercut" and "Given Up", IMO, have been the best examples of what I mean.
The few remixes for The Catalyst I downloaded and played through my car just didn't seem to have that rock-out feel to them. Before you get on me about that, yes I realize they're completely different than the final song, but they were all I had to go on. This latest preview and the mp3 that combined everything definitely has that quality to it - I can't wait for the full version now more than ever.
Also, just throwing this out there, The Catalyst (to the best of my knowledge) has not leaked, yet there was a news story about 90,000 military secrets leaking.....so Linkin Park has done better keeping stuff from leaking than the US military.
Shinoda/Bennington 2012 anyone?