User blog comment:Morganaforever/Series 4 Modifications(IMPORTANT!)/@comment-4623180-20120213232504/@comment-3325613-20120214135219

I'm don't know why they haven't included it in the DVDs, but yes, I have the Complete Series 4 DVDs, and in the audio commentary of ep.7 Julian Jones does say that there's another scene with which the episode was supposed to start. As for Morgana lowering the dagger, I don't think that's actually another scene but more likely a shot taken from a different angle, that they decided not to use while they were putting together the episode. I'm not sure about the Dochraid laughing, but, as many others have said, it can be a clip they used to make the trailer more interesting. Finally, regarding Emrys and Morgana in the finale, I really don't know, but it would annoy me if it's a scene they haven't just included in the DVDs.