This is quite a good question. I think it depends on how you look at it:
Klaus definitely changed a lot over the course of the series and finally accepted that he needed to die for his family; I guess he was mentally okay with this.
Elijah realised that his entire life hadn't been futile, he'd redeemed his brother and accepted his purpose was to die with him.
Rebekah finally got what she wanted, is there anything more than "health" to that? She finally let herself be happy with Marcel.