I made a similar post over at the stormspire forum. You can find that here:
WOD Price Spiking Items To Kill For - What do you think?
Something caught my eye when reading the alpha notes recently.
Although it's old news it seems like if you use the "free 90 bonus" on a character that you already own AND is above level 60..then you get 2 free professions leveled up to 600. I'm sure that if you time it right, and do a little trade spamming / auction house sniping, you can get a decent amount of rare recipes between now and WOD.. Which you can sell in "recipe packs" to players who've just gotten their "free lvl 600 professions".
While it's just a theory, I could see this working if you find the right buyer. Someone who understands how hard some recipes can be to obtain. Anyhow, just a thought.