They know they cant afford to have a release like this again. And the last thing they should be thinking about is multplayer.
Agreed. Multiplayer has MASSIVE issues of its own which must be resolved before you can release a multiplayer game. And there is an expectancy for high quality that is associated with CDPR at this point, so the new game will be scrutinized hard.
Just look at what happened with Bethesda and transition from fallout 4 (singleplayer) -> Fallout 76 (multiplayer)
How did it go?
They could fix up the story, make it 2x longer and give us sufficient time to get to know the characters, instead of taking the montage shortcut and all other shortcuts they took.
I sincerely doubt they will do any changes to the CP2077 story afterwards. Any new stories will likely to be entirely different stories, instead of continuations of cp2077 story.