Here is an in-game cutscene that plays during this week's Endgame Campaign quest!
If you did the War Within Endgame campaign this week, you should expect the following cutscene to play. However, Blizzard did not push the Encryption key for this cutscene until a couple hours after War Within's full launch meaning that if you quested right away, you did not see the cutscene.
Blizzard has hotfixed in the Encryption key for the scene, but not for the voiceovers, meaning this is the best version of the cutscene that we have at this moment.
Max Level Campaign Chapters 1 & 2 Playthrough