Paul, pro league player for Team PZ, playing the new Eternal Coliseum PvP map:
https://www.twitch.tv/paulawl/v/90474395
The PvP portion starts at about the 1 hour 53 minute mark. Those who do WvW will recognize the building structures used in Etenral Coliseum.
Note: The beginning part of the video is Paul playing the new PvE map and the latest Living Story chapter.