Shadowy Profile pictures heralding new champ?

Okay, so recently I came across a reddit article claiming there was a new Shadow Isles champ coming out sometime around the Harrowing. Her name is supposedly Kalista and she is an ADC with something called soul bound. But that's not what I'm here to talk about. to announce her arrival Riot has taken some of the online profiles of some champs and put black fog over their pictures. Supposedly these champs are the one being hunted. I looked through all of them and found that (unless I missed one) they are all assassins here's my list so far: Xerath, Cassiopeia, Twisted Fate, Leblanc and Zed. As i was looking through the first few champs I thought it was Shurima related again but then I found others like Zed and Leblanc who have virtually nothing in common so I'm wondering if anyone else has pieced this puzzle together and furthermore if i missed any of the shrouded champs.