In addition to the new character that's supposed to be announced on the 15th, leaks from the new edition of Corocoro revealed that Braxien, Garchomp and the standard form of Mewtwo will be playable in the upcoming Pokken Tournament.

Serebii Update; Garchomp, Braixen and Mewtwo confirmed for Pokkén Tournament https://t.co/oV6DIIA7Ub pic.twitter.com/TH2aMQvxS6

— Serebii.net (@SerebiiNet) January 13, 2016

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Its unlikely that any of these three are the character to be announced later as none of their Japanese names contain "ラ" which was the hint provided.

These three characters along with the un-revealed new one will take the playable roster to 16.

Source

 

[Black-Ice]

I'll beat the living hell out of it with Mewtwo










Best Pokemon EVER!

Fight me












Dark type > Psychic type
Checkmate Atheists ;o;

 

[EMP Knightmare]

Fight me












Dark type > Psychic type
Checkmate Atheists ;o;

OK, but don't when I win