Quick Update.
The last scene of King Conan with Narration from Conan the Destroyer was meant to be the first scene in John Milius Conan the Barbarian.
Presumeably this is due to the Narration of Arnold Schwarzenegger being replaced with Mako and deciding the oriental accent voice over narration did not match the image. Hence the Black Screen with Narration.
The shot times out exactly to the introduction and the introduction is a Dolly in the scene present in Conan the Barbarian of King Conan a Dolly out.
So a Bookend to the Film one in which he has his Sword another for which the sword was absent.
Destroyer = Introduction