Square Enix recently revealed a new trailer and gameplay footage for NieR: Automata during the NieR music concert and talk event in Tokyo. The videos have since surfaced online, which you can find below courtesy of YouTube user xenosaga7.
Folks over at Gematsu also compiled information on the characters (shown in the first video), which you can find below:
2B (voiced by Yui Ishikawa)
Official Name: YoRHa No. 2, Model B, “2B”
A blade of quiet determination.
2B is an all-purpose battle android, deployed as a member of the automated infantry squad, YoRHa. She is equipped with a sword for close quarters combat, and can attack from range using the “Pod” support system. Her eyes are obscured beneath her standard-issue military visor, which she rarely removes. Members of the YoRHa squad forgo names and are referred to only by their code numbers. Though the regulations forbid them from expressing emotions, each model has its own distinguishing personality, and 2B is comparatively cool, calm, and collected.
9S (voiced by Natsuki Hanae)
Official Name: YoRHa No. 9, Model S, “9S”
A soul of frail kindness.
9S has an attack function, but it is an android that specializes in investigative purposes—a member of the automated infantry squad, YoRHa, who triumphs in hacking-based information collection. Within the YoRHa infantry squad, he is the relatively more emotional and friendly type.
A2 (voiced by Ayaka Suwa)
Official Name: YoRHa Model A, No. 2, “A2”
A vortex of hatred and the past.
A2 is a prototype model android within the automated infantry squad, YoRHa, not currently in use that specializes in close-range attacks. It was in use towards the implementation of formal models, such as 2B and 9S. It doesn’t talk much and always acts alone.
NieR: Automata is set to release for the PlayStation 4 this year.