Though it has only been a few months since Walt Disney World brought back its annual pass program, it looks like those who were looking to pick up a new annual pass during the holiday season may be out of luck, with all but the lowest tier of annual pass now unavailable. According to Walt Disney World's official website, "New sales of select Annual Passes are currently paused. New sales of the Disney Pixie Dust Pass remain available for Florida Residents."
Though no reason was given for this move, when Disney brought back annual pass sales back in August, they included the stipulation that sales could be paused at any time due to demand.
It is currently unknown when sales for annual passes might resume, but given how busy Walt Disney World is during the holiday season (and how full their Parks Pass reservation calendar is) it seems likely that sales will remain paused through the end of the year.
For more on Walt Disney World's annual pass program you can check out their official website here.