WolvenKit allows reading and writing nearly every REDEngine file format to some extent. It can also be used to create file modifications to the assets of the game, though this is currently beign actively worked upon.
Immersive Role Playing is an hibrid between mod/framework that lets you make your own custom content, - Scrip Execution Engine - In Game Editor - Custom Quests - Gang Wars - Flying AV - Metro Service - Taxi mission and service - Crew Command Manager - Housing Development Manager.
What's is interesting in the Narrative modding related is to being able to do a simple missions (Go to point A to Point B, Kill Npcs, etc.). Custom scriptable phone conversation will also be supported but at the moment Oct. 2021 we need to wait to future iterations.
Now, we know we need to make the characters talk to be more Immersive so here is a list of some tools to make their voices
xVASynth is an AI based app for creating new voice lines using neural speech synthesis. The app loads models individually trained on character voice data from games. The app gives users control over details such as pitch and durations of individual letters to provide control over emotion and emphasis.
Personally, is one of the best softwares of AI voices, and it's completely free, for cyberpunk there are some models you can download and they work pretty well.
I have to thank to Walrus420 for the shotout of this one :)