Walt Simonson(?) had Shiera's soul leave Kendra's body and Kendra's (who had formerly moved on) was back in possession. This went against everything Johns had set-up about the star-crossed lovers (Shiera basically said "Adios" to Carter and gave her Kendra, saying their curse was over - something she WOULD NOT do). And of course after that Carter and Kendra did (briefly) hook up without Shiera's soul present so yeah he did his great-niece
:(
Kendra being her own person...good. Kendra getting dragged into becoming Shiera..ugh.