Moving to 8-a side, as used to be played in high school, would greatly increase scoring while reducing knee injuries. Lowering the basket would lead to more dunks.
Look at women's gymnastics vs. men's gymnastics. They don't do the pommel horse or the rings, and men don't do the balance beam or the uneven bars, among other variations. Works out great for everyone.
The problem with the WNBA is that they are trying to play men's basketball, just with a smaller basketball. It doesn't work, and it is not a pretty game. Change it to be something more aligned with XX chromosomes, and you would have a much better product to sell.