I would have separated them just into a large marina breeder box until a: the new female gets berried, then take out the male and/or b: keep both females and the male in the same box, the first female will drop the babies and probably molt right away and get jumped by the male, so you will have her berried again in no time, then you could remove the male to the new tank setup, where the females can go after releasing their babies in the breeder box. The box will give you more opportunity to see the babies clearly and watch them grow up a bit....decide if this is your new strain or not.
You could just leave the male in the tank you've created for them, and give him another male to keep him company while these females have their babies.
Once you see if the babies are the same color/eyes then you can decide to put them all together in the one tank/or move them back (should they not have produced the white coloring/orange eyes) to the original tank.
With the already berried female you don't know if a regular TT male got her or the white one, so putting her in to have babies all over the tank will not give you the answer you need.
She needs to be separated so you can see the babies. With the regular TT babies, I noticed the orange color almost from day one....if any of these babies are white and stay that way then you will know you have something to work with...if not put them back in the main tank to grow up.
Concentrate on keeping the white ones completely separated until you see new arrivals...otherwise once 2 sets of babies are in a tank you won't know who had what?
I separate my hybrid females until I see the babies that way I can document the outcome of F1 and F2 etc.