I think Sicks is going to kill everyone Yako holds dear. Everyone except Neuro.
Why? My main basis is chapter 124, page 19:
"From here on this Sickness... would likely kill all of us humans without mercy.
Even the people very close to me... without a single exception!"
Even the people very close to me... without a single exception!"
In the background of this page we see a human figure being shot in in the head, a foreshadowing of how Sasazuka would be killed by Sicks in future chapters.
Moreover, in chapter 180 when Sicks killed Sasazuka, he let Yako live, stating that by doing so it would lead to "crueler, happier consequences".
Sicks will kill anyone who stands between him and humanity anhilation; and right now, the greatest obstacle is Neuro: Neuro and his allies, the humans. If he wants to destroy Neuro, what must he do first so as to weaken him? Destroy his pawns and allies.
Sasazuka is dead.
I'm sure Sicks wouldn't mind to kill one of those bothersome obstacles as well, the police department.
And who else, Neuro's most loyal pawn?
Ah, yes.
Yako.
(Yes, you might be thinking that Yako is often abused, tortured, and constantly complaining about Neuro's behavior; but it's true! Why else would she have stuck by him for so long?).
I don't know if Sicks has plans of killing Yako, he probably has, being the sick murderous b*****d he is; but, again, being the encarnation of 'true evil', I'm sure he would prefer to give her a slow, painful death. A death from the inside. Something not even Neuro can't protect her from: the deaths of those she holds dearest, and what's more, dead because of her. Those feelings of pain, guilt, sadness, despair, and loneliness... I'm sure Sicks would prefer to deliver that kind of cruel death, rather than ending it quickly with one blow.
Needless to say, as it happened once, these feelings would make her collapse completely and possibly desert Neuro, leaving him 'vulnerable'. And seeing how Yako is still by Neuro's side... he'll just have to kill more people, then and up to this point, I hope that means more Neuro x Yako will be on its way.
Yako's mother, Kanae and Aya are my guesses; leaving Yako completely 'alone'.
What do you think?
