First photo from There and Back Again (out July 18, 2014), with Orlando as Legolas and Bard the Bowman (Luke Evans).
Why Legolas is back:
“He’s [elven king] Thranduil’s son, and Thranduil is one of the characters in The Hobbit, and because elves are immortal it makes sense Legolas would be part of the sequence in the Woodland Realm,” director Peter Jackson explains.
“Bard is an interesting character, but [in the book] he’s kind of a random character who comes in after the fact,” says screenwriter and producer Philippa Boyens. “We take more time introducing him. We know from what follows that he was a father, so we [explore] that. I don’t think we take liberties, because it’s all there in the storytelling.”
Source