For anyone interested in the Tome, Nejena still drops it. For fun, I wanted to quest the tome and I camped in her den for a week. I probably killed her about 12 times before she dropped it. I was very determined to get it. Anyway, just thought this post may help someone still doing old world quests.
I am Bohunkas1 (lvl 51 Druid) and I approve this message. :-)