I wouldn't mind if the two promos are Foolish Burial and Copycat. Those are relatively popular cards from the original series. Although, they probably are going to be Magician of Black Chaos + Ritual or Meteor Black Dragon and something else.
I'm definitely going with (and hoping for) Dark Magician of Chaos. The only way you wouldn't have at least heard about it would be to have never done any of the following:
-Seen anything of the early anime series
-Gotten one in ANY of the YGO video games
-Seen a copy of Dark Magician Girl
And I'm pretty sure that, if nothing else, a fair number of people have done that third one, and would love to have a means to crank DMG up to 3800 ATK. XP