If they are going to bring people back, I'd prefer if they took the reincarnation route. And no, I don't mean someone brought him back to life through sorcery. When I say reincarnation, I mean like actually reborn as a new person. Maybe we met some couple somewhere who has a newborn and we just sense Zenos' soul within. The baby crying and then smiles seeing the Warrior of Light in front of them and like grabs our finger all cutely. As we smile to each other almost like deep down, we just know it's each other. Probably still tacky but I'd rather they do this than keep him alive as is. Especially if they want him to go through a redemption.