@Riot will the bilgewater map ever come back? Can we have more lore themed events?

I loved when it was here and I like what you have done with the events tied with skins and changing summoners rift. I think it would be really cool if we could do that except instead of it being tied to skins, like snowdown, star guardian, and video game skins, maybe it is tied with some lore instead. Like maybe we could have another PVE event like star gaurdian, but this time we are fighting in the rune wars. Or maybe you have a noxian vs demacian themed summoners rift. I don't know, just some suggestions.