My take
Adalind will tell/show Nick that she’s a Hexenbiest again while they are having sex! Surprise! Seems to be the Wesen like to Woge during sex, I don’t blame them they like it rough. Maybe this time Nick will kiss a Hexenbiest (in Woge mode).
I wouldn’t be surprise if the writers let “Juliette” creep back into Eve, just to stirrup the pot. But this is just so annoying, not because of Juliette it’s the situation back and forth back and forth, really like a damn soap opera!
Then again, Eve is willing to do anything to achieve her/HW goal, including turning to Sean. Since Nick is very important to HW and Eve knows how Nick is, he’ll never stop (remember the scene with the King, when he asked Juliette what is Nick like, she said he will never stop). So of course if anything happens to Nick that is a big blow to HW. They worked hard to recruit Nick and even his friends.
Seriously though, if Adalind will hurt Nick, do you think its only Eve will come after her? Cause I'm sure we all agree here that the scooby gang will go after her too.