iCorel: Is unknown female in Resident Evil 6, Ada?

The unannounced Female Antagonist is shown to release a virus via exploding grenade like contraption with syringes immediately infecting BSAA Members.

Ada in Resident Evil 4

Unknown character in Resident Evil 6

Speculation is that Ada Wong is this mysterious Antagonist. She was last seen in Resident Evil 4, securing a plaga sample for "The Organization", with unknown mortification. People thought that the woman in the Captivate Trailer was Ada Wong due to the fact of this being a new game and Ada might be getting a Concept-Design-make over. The second reason for people believing this new Antagonist being Ada was because now she has a large playing field with Wesker gone and a new virus in her hands.

"Put your gun down Chris, she's a key witness we need her."
"A Witness? She's the one who did all this!"
(Chris and Leon in Resident Evil 6,
talking about unknown character)

Another possibility is that she may be Carla Radames, a clone of Ada. However it is a rumor. Now this rumor was dispelled quickly, the moment it came up but this rumor might possibly be a true one as it had the list of character names months before and every announced new name in the latest trailer was true, after that list.

It's too early to conclude that this new character is Ada or an Ada's clone, in fact she might not even be Ada. However Capcom has confirmed that Ada will be in Resident Evil 6. If she is Ada or a clone of her that's posing as her then it would explain why Leon wants to protect her. After all, Leon shares a close bond and history with her. Possibly an intimate one.


(Resident Evil dark side chronicles) Leon: Ada!! Ada: This place is gonna blow. There isn't much time left. Leon... You have to get out of here. Leon: No, Not without you! Ada: It's strange... i barely know you, but i knew you'd say that. Leon:Ada.....