Future DX12 support when the code is unspaghettified?

With DX12s low level API that allows for better efficiency out of integrated graphics, i wonder if Riot will be using the DX12 API instead of dx9 when they rewrite/reoptimize the code for League of Legends. League adopting DX12 would be huge, as its one of the most played games globally and I believe most players play using integrated graphics on laptop and low powered desktops. There really wouldn't be any downside to moving to the DX12 API if Riot was to ever untangle the mess that is there code cough tahm ketch killing teammates cough everything is coded as minions cough