Could? Possibly, sure.
Would? Why should any ticket guarantee a win based solely on arbitrary characteristics of the candidates? Nothing about being a woman, a man, trans, cis, gay, straight, bi, ace, black, white, Latino, Asian, biracial, triracial, short, tall, hirsute, bald, balding, skinny, jacked, overweight, or any other randomly chosen descriptor should be a factor in electability. The fact that it’s even in question is a strong indictment of how we view politics in a broad sense.
In general, I believe a two woman ticket would get fewer votes than a woman/man ticket, which would get fewer votes than any male-led ticket. The misogyny effect is strong. But it really depends a lot on the specific people.
Considering Hillary won the popular vote, I think most people don’t consider gender very important. Or at least the people who do consider gender very important are voting Republican anyway.
gender is irrelevant
will they stand with the people or the corporations?