Do you remember the select screen from E3. Well on the right side with the character Shujinko. Remember when we thought smoke was the other cyborb. But smoke ended up to be the one that most people thought was (REPTILE OR SHOKAN) well what happened to the other cyborg.
Also if you look at the content with the art. There is a picture of smoke and Sektor remodeled drawing. Now I am not saying that it is Sektor, It could be Cyrax. but there was a Cyborg that was not Smoke in the select screen at E3.
But there was another character added to the select screen. because of Noob and Smoke were combined.
But I believe that Sektor would end up being a super unlockable.