On the contrary, I thought Yoda has been more outgoing recently, out-of-her-shell, more comfortable with herself. In the past she used to be rather quiet, but even back then I didn't see much resemblance of her character with Nanase. Yoda is more airheaded, kinda dorky type of girl. Not as sensitive, easily cry or shy like Nanase. If there is one girl that embody Nanase personality a lot more is Endo.