New Champions from Unexplored areas and factions?

Hey, I am a big fan of the lore of League of Legends and am a little disappointed that there are large areas of the map of Valoran that either has little champion representation such as Kumunga, which only has two champions ( and ), or the Plague Jungles, which only has one ( ), or no champion representation, such as the Marsh of Kaladoun or Fyrone Flats. Additionnally, some of the factions in LoL aren't represented very strongly, such as the Gray Order (with being the champion from) or the Glade (we really don't even have a champion FROM the glade, only , who only borrows Pix's power). Do you feel we could use some of these areas and groups to better effect? Getting to see what types of magic the Gray Order uses and what other fantastical types of fae exist in Runeterra could really flesh out the game. Otherwise we out to confirm that areas like Fyrone Flats and Kaladoun don't exist anymore.