User blog comment:Ricizubi/It will be Shirahoshi, if this doesn't convince you even one bit that I give up/@comment-1595565-20110520171203/@comment-1595565-20110520172914

According to Shirley's prediction, the island is going to need repairs. Also, since Luffy said he doesn't like her, following the Coby formula I think she'll become a Marine. Besides, she couldn't join the crew since she couldn't fit on the Sunny.