User blog comment:EmrysOfAlbion/Notes about Series 5 trailer/@comment-95.206.36.238-20120719133211/@comment-4135736-20120720134949

If that really was Freya, I will be thrilled because I miss her character (the writers forgot about her in Series 4 after her brief return in Series 3) and we may get to know how she became the Lady of the Lake.