Why won't riot release new league of legends new maps?

I remember Magma Chamber lol, it was "coming" for years. Basically too many resources required to create and balance a new map ( an actual new map, not just a re-skin.) Even just a re-skin like the winter SR they ran into problems and gave up because of visibility issues, imagine actual structural changes. Riot just doesn't want or need to commit those kind of resources when the game maintains its popularity based solely on SR. They are barely willing to maintain the 2 maps/modes outside of SR: TT and ARAM (not including the occasional random ones like Ascension.) Unlikely they'll attempt a new thing in the foreseeable future.

Get a new map RIOT.... You're the only game that has ONE map and only ONE map since well... Board games. You've entered a new genre. Bored game.. lol

They take a LOT of resources, and technically, they do. In rotating gamemodes (Dark Star: Singularity). Just not often, and not consistently. We'll get new maps eventually, but right now Riot's invested in balance and Runes Reforged. Oh, and skins.

This isnt a call of duty game they can't just pump Maps out every two weeks creating a map for this game with take up a lot of time and resources

A new map isn't going to help unless it offers something new to the table in terms of game play. If they just have the same moba format they just infringe on Summoner rift and Twisted Treeline turf.

I do miss the Crystal Scar as the capture point system was quite enjoyable and Ascension isn't as grand imo.

They could attempt to make a payload or a capture flag type of game mode but balancing would be quite tedious.

If they did have 2/3 (or however many) maps including SR (all of them being playable in Ranked Solo Queue), I could see it working if they made it a voting system to choose which map is played on during the lobby before choosing champions. If there's a tie in the votes, it could then be randomized.

Make that phase like 10-20 seconds long, and have it not matter if people choose not to vote. That way we'd get map variety without creating "competition" with Summoner's Rift, just more options. Chances are if there's a "bad" map, it won't be played as often, and it could later be phased out and replaced with a better one, or updated to be more enjoyable.

I'd also like them to make seasonal versions of Summoner's rift a standard choice for players (I loved the Winter version), not everyone having to play on the same season during a single game (assuming they work exactly the same and it's only cosmetic differences), meaning not everyone sees the same version of the map during the same match.