How would the addition of women's football integrate with the current FM?
I don't see any reason women's football should be added, for two reasons.
1. The two don't mix at all in real football.
2. The fan base is incredably small. I went to Birmingham v Everton in the Women's Premier League last season, and there can't have been more than 100 people there (played at Valley Stadium, Redditch). My local non league team, Newcastle Town get on average 150 attending, and they are in the 9th tier of the men's game.