Just to let you know that I blame you that both Carter and Seth have lit a single candle each in dark corners while listening to Celine Dion's All By Myself in my brain thank you very much XP
But yeah onto the chars:
Josie will miss her sister-in-law and Eden will miss her idol.
Seth is sitting in NPC land planning evil plans of evilness XD. So there is no reason for Gabby to die. If something happens where his secretly running Hellfire comes out she might leave him again. But I would wait for that to happen until we get more Hellfire and GUARDIAN members. As of now they're pretty scarce. That also probably covers the Kevin situation. If he died Seth would not trust Damon to run things solo. So he'll be alive and lurking until the right time.
Carter is also in NPC land coming out on occasions. While you we're on hiatus I just said that she was busy with teaching so I'm just gonna stick with that. We can do some backstory stuff over email since I have one million Cabby old threads in my head.
Caleb will miss his bro but he's busy being all pissed about his new partner.