Which way would spoofing this message send the market?
After the announcement, the price dropped to $1, and has since rebounded to $200.
Maybe the $1000 BT2 price wasn't really a bet on free money, but on the prospect that BT2 might replace BTC.
If the expectation was that post-fork BTC + BT2 ~= today's BTC, that means that today's BTC price was depressed by this possibility.
Now that BT2 is cancelled, the value flows back to BTC.
The Chicago Mercantile Exchange says they'll start trading Bitcoin futures by year-end.
edit: First three responses to the question all within one minute of each other with all completely different opinions. That's why it's so difficult to predict these things!
Conversely for those who were following this removes the uncertainty around the fork - the downtime of a couple of days, potential 40-50 minute block times, lost coins, replay attacks, etc.