One of the concerns is that the WIPL may take away audience from the IPL or dilute the brand of the IPL. It is true that unlike some of the other countries such as England and Australia, women's cricket is not that popular in India. But similar to what happened with the IPL, if the WIPL is launched it can cause a spike in the popularity for the women's game. It will bring big bucks as well, as some of the corporates and celebrities who can't afford franchises or sponsorship in the IPL may opt for the women's variety.
I don't think WIPL can cause some damage to men IPL. As same companies who sponsoring male IPL will be in women also. Anyways we don't have any chance of women IPL in coming years, only league's for women are WBBL and in England. These two leagues are dominated by Aus and England women don't know if there are women Cricketers from rest of the world also.