The problem is that the gifts still work at Rosalie. In other words, Jane's power is still dangerous in her and especially in the baby. Damon will have to be quick if she becomes a threat.
Its nice to have damon and rosalie having a peaceful life but then even they end up joining the war with the volturi, i think rosalie right now is way powerful coz the bond she have to damon bcoz she's turning to a perfect vampire 🤔🤔