What the heck?
Really now?  Don't be
silly!  Magazine publishers routinely produce speculative issues & covers, comparably to the
championship paraphernalia that, e.g., major
football teams produce before their deciding game(s) even kick off. Do you really believe that the "championship" t-shirts that the players don for t.v. immediately after the final whistle|gun were produced by people slaving over hot presses in the bowels of the televised stadium, but not starting work until the 4th quarter of the championship game? 
Hillary's glorification in the collective polls makes a good-enough case for publishers to spend the money to do substantial
production- work far enough ahead of the election for the publishers to get their hagiographic issues on newsstands a day or so--instead of a week--after the election. There's likely a politically incorrect Trump-victory issue that's being produced under thicker cover. The risk might not even be in the class of the Chicago Tribune's 1948 "DEWEY DEFEATS TRUMAN", if collectors can get their hands on the speculative issues mistakenly glorifying the eventual loser.
And what's up with using an old 1980's picture of Hillary? They need to use a more recent picture, like the one I provided below.
I disagree that it's a 1980's picture. Why bother with such an anachronism?  Did you overlook her graying temples?  When one considers that Playboy (reportedly) discontinued publishing nude photos of women in 2015, it's quite possible that there are numerous masters of portrait enhancement via Photoshop - whose services could be obtained at bargain prices in 2016. Certainly within the range of expenses that the Clinton Foundation has available for diversion to a namesake national campaign.
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Note *: At least layout, but also selection of images. No sane editor would wait until Election Day to secure the cover photo, especially if substantial, um, processing were expected to be absolutely & positively required to make it aesthetically acceptable to the upper management of the publisher.
Note #: "
Airbrushing out cosmetic flaws is just sooo mid20th Century!