No crystal ball, but my thoughts....
Mid-January final fiscal papers (LMPQ's) are due to the IRS by corporations, if WDW runs on a Jan - Dec fiscal year.
With the above said - I they would know their, WDW's, profit and loss statements for 4th fiscal quarter 2009.
Then based on profit and loss statements for 3rd or 4th fiscal quarters 2009 - any 2010 discounts would then begin.
WDW starts with Florida, near by states and AP holder discounts first. The families most likely to frequent the WDW Parks. They also may send out PIN codes to some guests and allow Chase Disney Visa card holders have some discounts. After that General Public discounts.
Bottom line - WDW discounts after 10/09 would not come out till after September 2009 (when 3rd fiscal quarter ends).
For Jan - March 2010, I think WDW discounts would come out after or close to the end of the 4th fiscal quarter 2009, about early December 2009.
Then for April 2010 into June 2010, the WDW discounts may come out around the end of 1st fiscal quarter in 2010, sometime in late March 2010.
Holidays, Peak days and Summer are sometimes excluded from discounts.
Also fiscal quaters do not end on the exact last day of the quarter. The last few days of the quarter are acrude to the next quarter.
WDW would have to know their Profit and Loss statements, before they would do layoffs, hire employees, give out WDW discounts or declare chapter 7.