Planning for a peaceful life away from all the nonsense after the fighting is over is never the wisest thing to do before a cataclysmic battle. While we would like nothing more than for Grey Worm and Missandei to get to fulfil their dream of retiring on an island, we doubt it's in the cards. Most likely, Grey Worm will die tragically in battle and Missandei will narrowly escape a horrible death in the crypts. It will be difficult, but we hope that after this is all over, she's able to find love, comfort, and acceptance back in her home country.