Yeah they do pop up from time to time. I remember two from It I always wanted to ask him about. At one spot it is suggested that Vic will come and talk to Bill alone. The context makes it certain it was supposed to happen very late (maybe post rock fight), but in the finished version it never happened. The other was a suggestion there would be more about Peter Gordon, but he completely disappears from the story after the aforementioned rock fight.

It's pretty easy to have happen. These sort of inconsistencies are only ever noticed on rereads.