Actually its realy hard to tell you that how much rang of motion will you achieve, without physical examination.
The best option you have your physio.
keep doing exercises to get the maximum possible rang and to avoid any contracturs to develop.Some times it takes more time because of internal tissu scars. So dont give up and carry on with physiotherapy.you can put ice just after the streatching exercise that will controle the inflamation.
in which area you are living in ?? may be i could suggest you some gud therapist in your area.

gud luck