So, its obvious Smaug has moved out and the dwarves have reclaimed the Lonely mountain. By this time Bard must had killed Smaug and so the dragon cannot return to the Mountain. So, the dwarves have pretty much gained what they first set out for? I'd say they have. But hinting Thorin's corruption toward the treasure within the mountain, we see in this trailer Thorin's now going. He's fading and not heeding the words of his friends. Basically he's turning his family and friends against him and they don't want to give up hope that he's surcoming to this disease that his Grandfather had because of all the gold he collected. I'm not sure how such a thing could be passed down but in this case it must have because we do see Thorin's downfall towards resisting the massive treasure.
Bilbo is talking to Thorin here, he's told him he's made a promise? But I do not think we know what promise that is. It could be the 'promise' he made in Laketown that all would share in the wealth of the mountain and now he has become as greedy as Smaug and won't even give up one piece of it. I'm possibly thinking not that the promise Bilbo is talking about is the promise of the sharing of the Mountain's wealth. But instead a promise to help others in time of need, and its possible we do not see Thorin make this promise until this third movie.
Here Bard is most likely talking to Thorin and telling him: "You have brought upon them only ruin and death." Who does he mean? Likely the people of Laketown he promised to share his wealth with. Understandable that Bard is upset, Thorin marched his company to the Lonely Mountain and released Smaug from his slumber and then he flew over and destroyed Laketown. Bard barely managing to kill the dragon, for which he apparently succeeded in doing. (Honestly I am very anxious to see the whole climax of Smaug!) Here Bard is probably hoping to talk some sense into Thorin who is having his mind taken by the sickness upon the treasure hoard.
The whole of the company together--including Bilbo.(Bofur is barely visible but you can see his hat right behind Ori) It looks as if they are dressed and ready. Some of what they are wearing doesn't necessarily look like battle gear, but none the less they are ready for anything. Its possible Thorin is talking to them at this point. About what--I'm not sure. But its possible he may be asking them to follow him one last time. The last line we hear in the teaser trailer. Some of them look uneasy and hesitant while other just look thoughtful. Bilbo is in the back and looking on at whoever is speaking. And it is possible it is not Thorin who is speaking to the company, but its the most likely proposition. And will his company follow him one last time? To what end and to where? It looks as if and I do think in the book the dwarves and elves of Mirkwood fight each other for a little while before the forces of evil--or Sauron show up.
Thorin gazing on into the ruins of Dale. But what and who are making the lights from the abandoned city? I do not think elves would set up camp in a desolated city--but orcs defiantly would. Could it be a band of orcs keeping watch after the mountain? It also could be the residents of Laketown since their homes were destroyed.
"Now, we defend it." Is Thorin's line in this scene of the trailer. Defending Erebor from what at this point? Orcs are the obvious presumption, but remember, elves and dwarves do fight each other in the story. Honestly I hate the idea of dwarves and elves fighting each other--its just heartbreaking. It simply shouldn't be happening. Tauriel's got the right idea, and if the good guys fight each other--*sigh* I am not looking forward to the elf vs dwarf battle. I really hope there is no bloodshed between the two races. Just thinking about this concept breaks my heart. Lets stop talking 'bout it okay? Good. *Starts thinking about spending my week by the warm hearth in Bag End with Bilbo*
An army of Elves with Thranduil on his awesome war elk and Bard riding next to him on a horse. Okay, first thing we need to get out of the way--yes I know. All the elves faces are the same. But I'm sure we'll get a little variation in the actual film. Besides, in the first Desolation of Smaug trailer the elves that were jumping around by the river didn't even have faces. Hard to notice, but its there--you can look! Anyways, now to the serious stuff. From the angle that you see this shot it looks like Dale in the back right corner. So--they're facing the front door of Erebor? (NO FIGHTING YOU DWARVES AND ELVES!!! JUST RESOLVE YOUR DIFFERENCES!!!! Seriously...) Both Bard and Thranduil are looking up...and in this next shot...
...We see Thorin and the dwarves looking down. URRRRGGG.... >:( please i don't want them to fight... :( Legolas! Tauriel! Hurry up and tell them not to fight each other 'cause there is a BIG army of orcs coming and Sauron had returned and big bats are coming too! This is no time to squabble over silly shiny metal! *sigh* Well it very well may be that Legolas and Tauriel convince the different races to not fight. I would love to see it. Oh! The connections!