Till now Landon and Alaric are the only human characters in Legacies(even if they been supranatural at one point). We don't know if and when Alaric will come out of his coma but is sure that Landon will come back to life to bring back Hope's humanity(even the writers teased that in the promotional posters).
We don't know for sure if Landon comes back as a phoenix but if it comes back as a human what do you think if Hope turns him into a vampire: like he returns to life,drinks some blood from Hope(that the Salvatore School has) and then he goes after no humanity Hope and she kills him(is not the first time he is killed as part of his "plan" remeber fake-Cupid in season 2) to trigger her emotions back.
That should make all the people happy: Landon is not defenseless anymore,Hope has done something awfull when she was with no humanity, the show will not be about their ship anymore like Hope has to deal with triad and with what she has done when she had no humanity(also she has done something awfull and the no humanity thing wasn't for nothing),Landon gets his own story(non Malivore-related or Hope-related) and gets some development finally to his character(I mean I am very sorry for his actor, he gets the worst storylines possible)
As for when should expect Hope's humanity back and Landon's return to the land of the living the safe bet is Season 4 Episode 9 "I can't be the one to stop you"
