User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-13471981-20141025132414/@comment-3046679-20141025133418

Funfact, that Hidden Blade icon is still in the game files, along with one for a Chainblade.

It is a damn shame the final game doesn't look or feel anything like this.