Nintendo is set to hold a special Pokémon Direct tomorrow, one that is to coincide with the 20 year anniversary of the series. Many believe that they will show off the original Pokémon games, along with details of various other upcoming titles like Pokken Tournament.
However, a finding in the European Registration Office found two trademarks filed under the names Pokémon Sun and Pokémon Moon. This seems to indicate that the next generation of Pokémon is coming, and that Nintendo is prepared for it. It is unclear whether they will announce it tomorrow, but given the ceremony of the event, it’s incredibly likely.