As I understand it, the Exotic Sparrow & Exotic Ghost Shell you get from the Prophecy dungeon are rewarded from the Triumphs for completing the dungeon solo and/or flawless, both such Triumphs are going to be cycled out of the game when the season ends, due to their status as seasonal triumphs, and Prophecy itself is going out of the game for a short time. My question is, when Prophecy returns, will the Ghost and Sparrow come back with it, earnable as random drops by completion?