This might ruffle a few feathers. In the new issue of Total Film they have a feature on the "new faces of The Hobbit", and in the part you can see below Aidan Turner (Kili) not only reveals that his character will have a larger role in the movie than he does in J.R.R Tolkien's novel, but that he will be "pursuing" Evangeline Lilly's Elf character Tauriel..
Just in case you can#t read the text in the scan for some reason, here's what Turner says..
“Kili’s part has been expanded from the novel; as well as chasing treasure, he’s also pursuing female elf Tauriel. But is he setting his sights too high? ‘I guess he knows nothing can ever happen,’ he explains. ‘She’s about 20ft tall and he’s only two!’”
Now from that it sounds like the little fella's feeling for Tauriel will be unrequited, but who knows, we could see a bit of a romantic subplot develop there. Obviously that is a big departure from the source novel, considering the character of Tauriel doesn't even appear and was created just for the movies. Is this
why she was added though? What do the Tolkien purists think about this?