Daenerys is away, Friendzone and Friendzone 2.0 have gone looking for her, and suddenly Tyrion is temporarily in charge of the Targaryen Empire, to an extent. Missandei and Grey Worm are in charge but while they're a well-meaning partnership, Tyrion and Varys will be pulling most of the strings behind the scenes. I'm all for that, but not if it ties Tyrion to Meereen for any length of time. He needs to be back on the move by the end of Season 6 regardless of what's happening with the city. Tyrion's best scenes are those with enormous family conflict, and he's the only Lannister around in the East. I'm not saying they need to rush Tyrion's adventure in Meereen, but the writers must avoid putting the shackles on the show's greatest remaining character.