Homepage says "In an upcoming patch," so it's probably not live yet, no.
Just on paper, though, the reworks sound good to me. Not sure what I think about giving Eve an ult that both shields her and does %health damage, but hell, she deserves a useful one after her last ult. Love the notion of increasing hate spike's range and giving her better chase abilities. I think it should be interesting.
Twitch's update seems like...well, they basically just buffed all his abilities across the board, except for making his ult do reduced damage to extended targets. Not sure what to think about that.