From THIS weekly update... "-Year One bounties issues by Eris will be retired -Reputation with Crota's Bane can continue to be earned by completing Quests in The Taken King" The bounties are the only thing leaving Eris. "Crota's Bane" is her reputation. This is clearly saying that she is still around, and TTK videos show she just moved from that corner to the base of the stairs in the Hall of Guardians.