First off,
there is no way of telling how many inches you'll gain by doing a certain training schedule before hand.
Don't buy into programs that tell you you'll gain "8-16 INCHES IN 6 WEEKS", because the gains are different for every single person and situation.

Second.
Do NOT use ankleweights when doing plyometric excercises.
They'll mostly damage the ligaments and joints of your lower body and might even ruin your technique.
Just focus on doing the plyometric excercises as explosive and intense as you can and you'll do fine.

If you want to gain extra inches, lift weights, you'll get them in the long run.