I think a few songs might work. Where in the LOTR films you had the grand vista shots you could have those in the Hobbit as well, but with added singing for instance.
Then again some songs are too cool not to include.
I was a little disappointed when LOTR didn't include the Ent marching song for instance:
To Isengard! Though Isengard be ringed and barred with doors of stone;
Though Isengard be strong and hard, as cold as stone and bare as bone,
We go, we go, we go to war, to hew the stone and break the door;
For bole and bough are burning now, the furnace roars - we go to war!
To land of gloom with tramp of doom, with roll of drum, we come, we come;
To Isengard with doom we come! With doom we come, with doom we come!