The former because come on, no Will of P will save her from her own heart being stabbed. Bringing her back would be worst than the shit the they pulled with Pell.
Rebecca. I can understand Carrot. I can understand Yamato. Hell, I can even understand the appeal of Perona. But all Rebecca did was run around and cry for her father. She didn’t even have a legit fight, but gotten humiliated by the superior Diamante and babysat by Robin. Easily the worst bandwagon. And as much as I hate to agree with Forneverworld, he’s damn right that she would hold back the Strawhats a lot had she joined.