I, too, could not locate any info on this Special Event for this year.
HOWEVER, there is info on the individual QRZ pages. For instance:
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4th Annual 12 Days of Christmas - 2022
W2L - Nine Ladies Dancing
This Special Event will begin December 14th and run thru December 25th. Work at least one for a Certificate or work them all for a Clean Sweep.
A B-E-A-utiful certificate will be available after January 31st, 2023.
NEW THIS YEAR
Any of the 12 special event call signs may have a / call area to identify the location of the operator.
NO QSL's - CERTIFICATES ONLY
Link to Certificate @K2RYD Page