I wouldn't hold your breath for a PIN - those seem to be few and far between (just ask the many people who've been to WDW many many times and have never received one). However, you may get a CODE - if you'd like to see the history of codes over the last few years, specific to your date, go here:
http://www.mousesavers.com/historicalwdwdiscounts.html#codetrends
The short answer is: maybe

Sorry there isn't better news than that. I would love a code as well for my first WL trip next May. But I've had to tell myself that you should never book a resort if you're not willing to pay full price. Ergo, I'm choking a little but have just budgeted assuming I will pay out the honker for the WL.
Edited to add: don't forget that
AAA usually offer a 10% discount for deluxes. Granted, if you have to enroll with AAA to get the discount it diminishes your savings, but I figured out for me it was still some savings off the rack rate AND I'd end up with a membership.

Though my usual strategy is just to have my TA book it at the AAA rate, with instructions to switch me to a code if one comes out. Since I don't need to show a AAA membership card until check-in, it's easy to hedge on buying one until the last minute. Obviously, so far I've been lucky enough to get a code and have never had to go through with buying a AAA membership.