A freeform league of legends based game would be nice.
One based off of all the lore of the characters where players could be canons of the champions

As a LoL player I will say two things. One I'd love to see it, but two, it would just be an arena game after all. The whole storyling of LoL is an arena.

Remember one thing. The champions in the League of Legends are summoned beings meant to battle, and the actual people are summoners (or the player), but we know almost nothing about them except that they're powerful magic users at war. The weird thing is that the summoned champions also have a backstory, so it's very unclear just what is going on in this plot. I think this idea has merit, but I don't see it being something that would work very long without just being a fighting game, in which case why not just play LoL?

In reply to Sleepy (msg # 2):

Yea, but I'm more interested in the backstory. Like the ongoing war with Noxus and Demacia. The uniting of Frejiord, etc. etc.
Basically anything besides the arena and the summoners