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          What's in, what's out in the hockey world for 2020

          Maddie Meyer/Getty Images
          • Greg Wyshynski, ESPNJan 1, 2020, 12:39 PM
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              Greg Wyshynski is ESPN's senior NHL writer.
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          While some trends in the hockey world will surely continue in 2020, others will undergo a transformation. Get caught up on all of it right here: