Guild Wars 2 - End of Dragons - Chapter 15 - The Cycle, Reborn - April 2023

This would more accurately be called the Epilogue of the End of Dragons story.

This video shows the debriefing and concluding conversations - both mandatory and optional.
This video shows the ending credits and acknowledgments. You should do this once as this does give an achievement - not shown in this video.
This video also shows a teaser for the future story with an announcement from Marjory and Ambassador Kasmeer at the Dead End Bar in Divinity's Reach.