Love the original, but completely agree that the last half needed a reworking. Pretty weak kills, and what Roth has in store, I'll be there in the theater to see the remake.
Although, the end where Berridge is in the bottom of the funhouse, and has to fight with the creature is pretty scary.
He could even show the creature being born, and then as Conway mentions in the finished film, that the twin brother of the creature is the one that all the kids see in the freakshow.
Didn't the novelization go into greater detail on the barker, and his son?