That's right, I'm already working on it. It's far from being complete, but I thought I'd update you guys on what I'm doing.
I am of course working primarily on the Northrend 70-80 Leveling Guide for both Horde and Alliance, but whenever I need a little break from it, I go right back to my Death Knight, because it's so much fun!
Anyway, my Death Knight guide will be my first class specific guide and I must say it's coming along very nicely so far, I can't wait to release it so that you guys can try it out. If you want more details about my class leveling guides, please check my latest blog post: Jame's Death Knight Leveling Guide.