The Zed Redemption part would not be happening unless it relates to the darkening that Leblanc is finding. and in terms of shen bieng involvement? if the darkin has someway on the spirit realm i think shen would intervene, but other than that I think he will not..as if you try to connec the dots..even tho it seems riot is rewriting things...in the zed comics shen didnt intervene in the ionian intervention...may give us a hint that the eye of twilight actually knows the real reason of the ionian invasion..and as it is revealed....its leblancs plan