So, I'm working on a new game mode, and in it I'm also experimenting with a new waveform controller. Backporting mic delay accountance into the previous one isn't worth it because it's a mess, so I'm remaking it from scratch. If this new waveform controller works as expected, I'll then remake Dub Mode and then the gameshow using this new waveform controller.
So, TLDR, yes, it's actively being worked on! But it will take a few weeks minimum before it's in Dub Mode.