Maybe it's just me, but it's been a while since marvel did a live action series and Spider-girl doesn't violate any agreements with any current movies being made. it's got a good story line and they could get the guy who played Spider-man in the old live action series to play her dad in this one. It'd be great.
I feel that if they were to create a Spider-Girl series(Not Live Action), it should be Galina Tsarfin, who is technically the daughter of Spider-Man and The Black Widow. If Lyra(daughter of The Hulk and Thundra) could make the jump, why can't she? The 123 kids doesn't exist!!! The Black Widow(Natasha) would make an excellent parent and mentor, in addition to Spider-Man as his ally.
As for Mayday Parker, I feel that she should be left alone for the timebeing.