The full passage (Ghost of Tsushima)

Hi all.
The question is:
Was playing the main story. After the credits, as always, we still have to liberate the entire island from the rest of the Mongols. And after zakisaniya the whole island and complete the game 100% a second end, let's say it was in Arkham Knight?
Too lazy to have to play it all clean, but I wonder to know is there any screen saver or video a)
Searched the net, but found nothing.