I know that women's world T/20 won't be followed by most, but I would keep an eye on Mithali Raj. After Janette Brittin and Clarke, she is one of the few players I have liked in women's cricket.
Raj would put most modern day players in the men's game to shame when it comes to timing. Yes, she doesn't have the power but she is such a graceful batswoman to watch. On the slow and low wickets of the Caribbean wickets, I expect the graceful Raj to continue getting big scores.
She averages 52 in test cricket and 49.81 in one-day cricket, but I don't even need to look at those figures to judge her batting. I just hope that she would have a great tournament!