I'd say most but not all of the Christmas stations have now flipped. The December ratings period starts in a few days and most Christmas stations want to be in the format when that happens for maximum effect.
But some are sticking to the philosophy that you make the switch the Friday before Thanksgiving, even if Thanksgiving is late this year.
By the way, does WSNY also flip? I know for many years, it was a rare AC station that maintained its regular format in Nov. and Dec. with just some Xmas music sprinkled in. Which is why it is the Adult Hits station in Columbus, iHeart-owned WODC, that becomes the Christmas station in the market. I don't know of any other Adult Hits station that switches to Christmas music. But I thought WSNY had flipped last year, along with WODC?