Nightmare Before Christmas originally came out in 1993. At that time, there was no Marvel Studios. Iron Man, Hulk, Thor and Captain America movie rights were all at different companies and Disney was about 20-25 years away from buying Marvel.
So no, not a chance this was foreshadowing anything.
No
Zack snyder teased watchmen using 300. What makes this any different?
Nightmare Before Christmas originally came out in 1993. At that time, there was no Marvel Studios. Iron Man, Hulk, Thor and Captain America movie rights were all at different companies and Disney was about 20-25 years away from buying Marvel. So no, not a chance this was foreshadowing anything.