There will not be another price increase on in 2004. Tickets went up in March and will not go up again until 2005. WDW has never once in their nearly 33 years of operation raised prices on the same ticket twice in the same year.
Don't know why you have Oct/Nov on your mind. In the past ten years, there has only been one October price increase (AP/PAP increase in 1996) and one November increase (AP/PAP increase in 1994). FYI, the last five price increases were done in:
March 2004 - PH/PHP's (Gate & Advance), AP/PAP's, FL Seasonal
February 2004 - UPH's (Gate & Advance)
June 2003 - all gate prices except AP/PAP
September 2002 - across the board
January 2001 - across the board