There names are:

10
Nagasi Ariial
(I tried her last name to sound like arial like flying. White cure.)

11
Itashii Setoshi
(The soccer player we all know. Red cure.)

12
Himika Ari
(Yes, 12 still has 18. Orange cure.)

15
Nodoko Antashi
(Shes modified to  timid, than staying secretive. Blue cure.)

16
Nenoi Ochika
(Still hosts a club. Purple cure.)

19
Herumi Monoa
(Ninteen is a special cure beacuse she is the first gray cure. Gray cure.)

EXTRA

Homonko Ari
(Ya guessed it, is 18)