User blog comment:It's Good to be the Queen/5 x 12 & 5 x 13 - Dragonlord powers, activate?/@comment-3325613-20121211135554

Are you sure Morgana doesn't know Emrys is a Dragonlord? In S4Ep13, when the Southrons were reported to have been killed by the Great Dragon, Morgana said: "There's only one person who could have done such a thing, only one who could have command a dragon... That's the work of Emrys!" So, I actually think she does know her doom is also a Dragonlord...

Anyway I also believe that the only logical thing for Morgana to do, since she goes into war against Emrys with a dragon at her side, is to use magic to make sure Merlin doesn't force Aithusa to abandon her...