Will Tauriel die in the 3rd movie?

[alatar]

After Radagast saves Gandalf from Dol Guldur, the writers could have the Brown one bunny-sled into the Battle of the Five* Armies. He could then see Tauriel and Bilbo both be wounded, and he then has to make a choice: save the elf or hobbit with his Stone of Darkness Absorption. What to do?

Following Kili's romantically tragic death (from a Morgul paper cut), Tauriel sacrifices herself and instructs Radagast to save Bilbo instead, as 'he will bring peace to Middle Earth.' Radagast holds the elf maid until she dies (with the appropriate amount of glowing), and then burns himself, his staff and the Arkenstone out saving Bilbo.

In the aftermath (and 10 hours of constant battle), the Brown wizard meets with Gandalf. For once he's not silly. His staff is shattered, that stone thing he uses is gone, and the Arkenstone shines no more. After witnessing so much humanoid and bunny death and destruction, he states that he's retreating to Rhosgobel after letting Gandalf know that he wasn't up for such tasks.

Or something.

*Actual number of warring parties may vary.