User blog:Merlinfan/A sword forged in a dragon's breath?

Watching the trailer for the last two episodes of Series 5 I noticed that there's an image of Aithusa breathing fire and Morgana holding a sword in the middle of the flames. Is she going to create another "Excalibur" to fight at the same level of Arthur's sword? Or is she going to give it to Mordred? I just can't wait to see!