Well, I say the most awaited would be Peter VS Miraz.
Anyway, and remembering that Narnia is more adapted (and addressed) to children, though many adults and yougnsters like it, I hope great music and some gorgeous movements of the combatants from both Telmarines and Narnians.
That is, because Narnia would never be adapated to the violence of other great and better epics like LOTR, Braveheart, Gladiator, Joan of Arc and 300.
(Remember, the only amount of blood that was seen in Narnia was the dry line that marked Edmund's lips. Also, the way blood was also pronounced but not with a grim feeling and intention. And something else, though there were some really gorgeous scenes and cries... what's the difference between the demises of these mythological creatures, even monsters (altough the fauns, satyrs and specially centaurs have more 'humanized' faces, but still you can't watch them die) and the deaths of humans? (That was the reason of LOTR about why many orc deaths were shown, but not many of those humans like Gondorians, Rohirrim, Easterlings and Haradrim... if you watch their eyes at the moment of their death is something that should make the movie R rated... and I'd still watch it).
That's something about I and my brother go for.
According to the mentioned above, I see clearly edited and adapted for PG-13viewing those beheading scenes and stabs, among the battle, and when the werewolf and the hag are killed. (At least they can put a glimpse of the hag's head when it rolls down... and a really painful and piercing cry).
Besides, what I look for to see is when Aslan roars and opens the gate, and how it will look Cair Paravel ruined. And obviously, if in the movie there will some flashback of the Telmarine's past.
I have said it.