I mean there were 4 clues and he said each clue was a different character
yeah, so theorizing about it :
we will have 4 characters indeed : Mileena, Rain, Rambo and someone else that Boon, purposely, left out of the data mining stuff, so, it's possible .... maybe he is saving Havik or Sareena, to be a "surprise" , a wild card and the 4th character, since he knows that the data mining was coming up anyway, so ..... kinda thinking: "all right, let them data mine and discover and have fun, but I will keep one out of the files, only to have fun when we gonna be announcing the new KP, ha !"
or
nope, in fact, the klues were about only 3 characters, since, 2 of those klues (#Seriously 6 and #6 degrees) could be references for the same thing, and Boon only got confused when confirming that each klue was for a different character .... yep, in fact, for different characters, but for only 3 , not four