Infinity Blade 2's "Vault of Tears" is actually a massive (free) content update headed to Epic's latest iOS entry this Thursday.
Several new enemies are being added, as well as "more than 50 new items" and rewards. Most bizarrely, the ability to "earn extra turns and invite their friends, family, and other non-Infinity Blade players to do in-game damage with the power of liking and re-tweeting battle calls." You read that right, folks: "the power of liking and re-tweeting battle calls." In the biz, we call that a "paradigm shift." Also, awful.