As Pokemon has been losing to Yo-Kai Watch, they did a smart
  move here, being their 20th anniversary as well, by making the
  announcement of the upcoming game into a nostalgia trip, showing
  people all of the fun people have had through the decades and
  giving the tiniest glimpse of the upcoming artwork. Before, they
  were able to show a few new characters in dramatic scenes - and
  I'm sure they will as game development continues. But for the
  first announcement, this was smart, low-key and showing the
  strength of time and commitment on their side. I'm sure as the
  year progresses, they'll return to their normal style of
  announcement. They're going to have it tough against Yo-Kai
  Watch, which is by an competing company and is really doing
  things right. So it'll be interesting to see what happens. These
  are people who build significant things into people's childhoods
  that carry into their adulthoods in some form, an almost
  invisible hand of influence among millions of people.
  https://www.youtube.com/watch?v=hmzDL1l3Fag