Turns out Countess Ashmore and not The Glass Knight is the Curator 2.0 card everyone was speculating about…
Card type: Minion
Mana cost: 7
Attack: 6 HP: 6
Card text: Battlecry: Draw a Rush, Lifesteal and Deathrattle card from your deck.
Although Countess Ashmore doesn’t have a Taunt, one advantage she does have over Curator is pulling Lifesteal and Deathrattle weapons from one’s deck — not just minions.