Sadly, zero Wurmcoil Engines extra. WotC screwed up Organized Play's "Buy a Box" promos so Morgan had to resort to giving away extra Wurmcoil Engines in place of the Memoricides that WotC should have sent his way.
We will have Steel Hellkite promos, though. :) Hopefully enough to go one per person, but I need to see what the other promos he sent are.
So stay tuned for word on what we'll do about Promos for this event (what promos we'll get and how I'll distribute them).
EDIT: Here's what we have to work with: