See, now, the article says they won't be bringing back Nimueh as the Lady of the Lake, but that article in conjunction with a couple of other teasing spoilers make me think that she's not gone for good. There was an interview with Bradley James recently that just-- he never said she was coming back for sure, but the way he vehemently said "I can't tell you about that" just made me think that there IS something for him to comment on, you know? The way they're all being so tight-lipped about whether or not she's going to be seen again makes me more convinced that Nimueh will be back at some point. If she was gone for good, they'd all just come out and say "She's not ever coming back" rather than saying "If she comes back it'll have to be done specially,"

My thoughts? They'll mislead us for a while with a new 'series-villain', and just when we're not expecting it, BAM! Nimueh makes a surprise appearance.....

But this might be wishful thinking on my part....