Today Ubisoft unveiled a new character for Assassin's Creed Unity, and it happens to be a woman named Elise. Mind you, Elise is also a Templar, but she might actually be pretty important to the story, considering Arno actually goes out of his way to save her from the guillotine.
We don't actually know much about Elise and how she fits into the Unity story, but Ubisoft describes her as "the fiery Templar." An apt description, considering she's a redhead and wears the Templar emblem around her neck as a dead giveaway. She might have defected, however, since Arno saw fit to save her life and fights at her side in the trailer. Well, we know by now not to take everything at face value in Assassin's Creed, and CG trailers don't always paint accurate pictures of in-game scenarios.
Still, the trailer is entertaining to watch. The background music is "The Golden Age," by Woodkid.
Something that may (or may not) be worth pointing out is Arno's timepiece appears twice in the trailer, the second time being at the 2:20 mark in the video. It bears a broken glass face, and also happens to be the Assassin's Creed Unity pre-order bonus for Europe. Novelty items like these tend to be hit or miss in terms of quality, like those jack-in-the-box toys for Assassin's Creed Brotherhood, but the watch might actually bear some significance to the game itself.
Might just be something Arno carries on him, might be more.