League of Legends style Fire Emblem
Ever since the post about putting the S into Riot Games, I've been thinking about games which they could easily flip the characters into and have it feel right.
As a huge fan of the Fire Emblem series, it fits so nicely into a game with 120+ established characters.
Imagine choosing either Demacia or Noxus at the start, you can pick between Darius, Swain, and Draven for Noxus or Garen, Lux, Quinn (to match Archetypes) and go around recruiting a team.
Journey to Freljord and have chances to recruit Lissandra, Trundle, Ashe, Anivia, etc.
Travel to Shurima for Nasus, Renekton, Xerath, Azir, Sivir, etc.
Plenty of different zones to journey around to and explore. Fight against teams of champions and monsters at different areas, could even have Summoners Rift, Twisted Treeline, Dominion maps which require you to move your team around the map differently.