as much as i would like to NOT see this ending it could come to pass. in the book kili dies protecting thorin but we will have to wait and see what happens to Tauriel because she is an original character made for the movie.
Since Tauriel started out as just an extra Elf who served as Galadriel's handmaiden during the Lord of the Rings movies, before she got this job, I like to believe that she leaves Mirkwood for Lothlorien to serve Galadriel.
This is what I think will happen as well....Oh here come the tears!! Why did they have to do this to me!! I am a sucker for this kind of romance.....No matter how Tolkien obsessed I am, I love this Idea !!