Who do you think will die first? I imagined the reasons and I think some characters will be killed.
Alyssa will likely become the irritating Sherryl-Blossom of Legacies, she has a past with the twins and we never had a main Asian character in the cast the only ones were Ngunyen in TO who died quickly and Oscar in TVD, so she is likely to be one of the protagonists until season 5 and then die finding redemption.
Jed is Rafael's shadow, so I suppose that, in order not to be without many werewolves, the show keeps him around kissing Alyssa and making the gay fandom delirious with an impossible romance between him and Rafael, which will obviously never happen until some vampire kills him.
Kym who is likely to become a vampire and probably die when Lizzie gets tired of Sebastian's mistakes, which make the typical Damon vampire-seductive-rascal and stay with M.G.
Kaleb, who will probably die in the final seasons, probably 6 or 7 to protect M.G from some villain.
Ethan will be quickly killed this season...
Maya die in the third or fourth season?
Wade, on the other hand, will be kept as Kaleb until the fifth or sixth season so the writers are not called fatfobics when they kill Wade.
Chad seems to know the supernatural and I think he is a descendant of the Necromancer or a spy for Triad Industries with an eye on the Necromancer or maybe another Malivore son who will either bypass the necromancer and return him to Malivore or kill him.