Being able to ''permanently'' tank (as opposed to temporarily avoiding death via CDs) as a rogue would rather destroy the idea that you're a rogue and not some sort of fury warrior, imo. Never going to happen, from either a lore perspective or gameplay one.
Oh right, I get it, Rift's illusion of choice class system has heralded a new age of rogues who can't tank but alledgedly could at one point.