I am glad you found your female but I am quite surprised that she managed to jump to another tank :)… I do know that some say paroes can do that, but I have never experienced it.
About the situation now – well, I dont know about the risk if the male will be attracted to some of the other females, somehow I doubt it, BUT … if he is attracted to the right female, and they again spawn then you have a problem, because none of the fry will probably survive with 4 ‘hostile’ females around. Plus, if the quindecims decides to spawn, the four females might want to jump to the next tank as well, because then life might not become so nice for them. Quindecim female in my experience can be rather bullying to fish that arent in ‘the family’ 🙂
As it is now, you could leave it as it is. The male will let the fry grow up in peace, and he will get a rest for some time. And then you have some time to prepare a clever way for catching the female.
The fry will not be good to move for a while anyway.