The sims 3 acting career had fame opportunities attatched. Sometimes for example you had to give out flyers for your latest movie. There was other fame opportunities like having to make an appearance at a certain dance club. None of which were rabbit holes.
Of course it wasn't a fully active career but then Late night didn't just add in acting. It added in a new world, four new skills, four hidden skills, New game play objects, New venues (including clubs which you could only get into once you were well known enough. It added in a new life state and to be fair the movie career had two branches like all the Sims 4 careers do. It had a fame and reputation system and annoying paparazzi. All that remains to be seen is how the Sims 4 implements those as features.
The point is the sims 4 acting career should be more in depth as its the fourth version of the game and considering its the main attraction of the expansion. It's also as been pointed out lacking things like bands although I do appreciate your sims in regular careers can get famous. But acting is the main focus, in late night acting was one of many features so I'm not sure the comparison is fair and we can our wait and see how then acting career is implemented. I will be happy and consider buying it if the acting career isn't a big checklist of grind ala the get to work careers and if the reputation system and fame system is decent. (Not everyone becoming famous because they briefly knew their next door and had a conversation with them once)
I'm more interested in the reputation system as I'm hoping that will actually bring about meaningful consequence for the game.