GameRant goes into where and when to pick up 2077 for the lowest price currently. Here is a snip;

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Cyberpunk 2077 is treated to a heavy discount multiple times a year, and so it's highly likely that the game's price will get reduced again at some point in the near future. One likely scenario is that Cyberpunk 2077 will get a discount to coincide with the release of the upcoming Phantom Liberty expansion, though nothing official to that effect has been announced at the time of this writing.

Cyberpunk 2077's Phantom Liberty expansion is scheduled to launch at an undetermined point later this year. The expansion will be leaving the last-generation consoles behind, meaning it should hopefully avoid running into the same technical issues that the base game did at the time of its launch. Phantom Liberty will give Cyberpunk 2077 players new areas to explore and quests to complete, as well as the chance to interact with a character played by Idris Elba. Keanu Reeves' Johnny Silverhand will also be returning.