User blog comment:Longlivemerlin/Merlin 'The Diamond of the Day Dialogue Teasers' UPDATE 3/@comment-4650675-20121221101056/@comment-5391346-20121221191037

Wow! You got most of them right! There are only a couple you didn't.

“Then there is nothing more to be said, except that whatever it is I wish him luck” This one is actually Gwen to Gaius. It might be about Merlin because he will apparently go on a quest to get his magic back.

''"Face me!" Now they actually changed it to "Face me, Morgana....FACE ME!"''  So it can't be Mordred to Arthur. It might be Merlin or Arthur though........

Your speculations are really good! I never thought the teaser trailer would be from Mordred to Arthur! I thought it was Merlin to Arthur or someone else. Do you have any theories on any of the other teasers?