Destiny: Vanguard and Crucible marks replaced by single new currency in The Taken King

Bungie sure dropped lot of information on Destiny: The Taken King, and one slice of it included new information on Vanguard and Crucible marks. According to what we gleaned from the livestream, Vanguard and Crucible marks are being replaced by a single new currency called Legendary Marks. These marks are usable account-wide as with Glimmer,