I think Emerald Dream is next expansion, then something to do with the old gods maybe. I would have liked to explore the Nerubian empire some more - their instances were really well done.
After my guild collapsed to life support and we stopped raiding (post Lich King), I just solo old content as I'm able and slay noobs in organized AV runs. Usually Cupcake Cartel. Maybe once I get my Bloodthirsty title I'll hang it up. I'm only somewhere around 160k HKs.
Yeah, pretty sure I went through a couple of forum handles during the span of that thread.