Although no main storyline achievements were included in this recent leak, those that surfaced online via the GOG Galaxy app provide quite a few hints about the kind of side quests that will be included in Projekt RED's upcoming title. By the looks of it, Cyberpunk 2077 will have a total of 45 achievements.
https://www.notebookcheck.net/Cyberpunk-2077-partial-achievements-list-leaks-online.504145.0.html