No sir, think again. Because of the magazine's publishing schedule, sometimes the cover date shot a bit over the holiday date, but still had holiday art. And sometimes, in the later years, two weeks would be combined into one, with two cover dates. And besides, New Year's is coming up, as you well know, and there's plenty covers covering that theme.
The long and short of it is that you're gonna see New Yorker covers for at LEAST another week. Oh you'll still see other stuff as well, so tough it out—grin and bear it ; )