I just spent a few minutes watching some really intense scenes from 3 new TV spots which are not available online yet. If you choose to view the three clips in lower quality below, then you’ll get glimpses of (in no particular order) the dragon flying and fireballs raining down on a fortification, Thorin leading an army in flashback (next to Thrain, I think), two opposing armies about to clash, Thorin raising his sword in front of what could be the Gate of Moria, Gandalf and Galadriel having a lingering moment, Thorin vs. the Goblin King, Bilbo about to fall off a cliff, the Eagles, someone approaching Dol Guldur (I think), more fun on the Stone Giants, and a “Have you hugged your hobbit today?” moment.
Thanks to Elutherian23, TheInception, and TheBluep0tat0 who all found a way to get that stuff out there so we can drool over it sooner than later.
Update 12/1/12 : The official version of the Smaug spot is now online and labeled #9. Screencaps from it are here.