Video Game Chronicles appeared to talk to the games creative director Pawel Sasko, who said this.

The developer says it’s still discussing the exact details of when and how base game owners will receive the new systems, but that its intention is to deploy them for free. So as well as adding a sizable chunk of new story to Night City, Phantom Liberty looks like it could finally do good on many of the promises the base game failed to live up to for many, before the game’s leaders move Stateside to establish the sequel dev team.

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So really, who fucking knows. Apparently the entire game is being massively overhauled to the point of where it's practically a new game, the fact it took three years to get to this point shows truly how underbaked the initial release was.

No Man's Sky is a bit different since it was a tiny studio that was promising the mood. Sony also threw the studio director straight into the limelight even though he had effectively zero public relations experience. Then again, he doesn't really seemed to have learnt his lesson, as he has big promises for his next game, maybe it'll be a surprise, who knows. Cyberpunk 2077 on the other hand has no such excuse, they had a very well capable and trained marketing and PR team.