Earlier today, there was a Pokkén Tournament stream aired on NicoNico.  During this stream, new characters were confirmed for the arcade version of the game.  Most of the confirmed fighters were ones already present in the Wii U version, such as Garchomp and Braixen; however, there was one surprise.  The stream confirmed that the Pokémon “Darkrai” is going to be playable in the arcade version of the game.  The footage showed that Darkrai will be a Technical fighter, and rely heavily on the skill and strategy of the player.  It is still not known whether or not Darkrai will be brought over to the Wii U version of the game, but many speculate that it is only a matter of time before he is added through DLC.  You can view the confirmation video below: