Scathach80 wrote:
F13 part 2: Ginnie and Paul think that they have thwarted Jason, but he comes through the window at the end (surprisingly, the next film to end with the warning that JV may not have been thwarted is not till part 6, 7-8 contain no such implication, while 9 is covered below)

Part VII had a final shot of a fisherman being yanked from his boat and into the water by Jason trimmed prior to release. You can see that deleted footage on youtube and in the boxset.

As for the hero's return, the final scene of Rudy Ray Moore's action comedy HUMAN TORNADO ends with Rudy being gunned down by the bigoted white sheriff and later revealing a bullet proof vest and laughing like a hyena at having outsmarted him.This was made before EXTERMINATOR.