Not the Hoenn starter most expected.
http://www.nintendoworldreport.com/news/41643/pokken-tournament-adds-sceptile-to-the-roster
Pokkén Tournament has added a new fighter who really kicks with grass.
Sceptile, the Grass-typed starter of Pokemon Omega Ruby and Alpha Sapphire, has hit the roster in arcades and will be playable in the Wii U version of the game. Bandai Namco's Japanese trailer also shows Farfetch'd and Electrode being added to the support roster.
The trailer can be seen below:
