Forum:Koala possibly the new crewmate?

Seeing how the Fishman island arc is going so far, I wouldn't be surprised to find Koala being the new member at the end of this arc or the beginning of the next one. Let me get into why i think its a possibility. Koala has a huge connection to fishmen and is heavily indebted to Tiger. Her dark past has already been revealed, and we all know how much Oda loves to show us that. She even lost Tiger, whom she had grown to love and respect. She has the perfect role for the ship since it needs a caretaker (Franky repairs the ship but it'd be nice for someone to keep it tidy.) And she's a female character, which wouldn't hurt to have one more of. There's also so much potential for her power set since it can be anything Oda wants it to be. Just a thought I had.