It could, but it shouldnt be major. The fact that its older scar tissue is good. Everyone has some sort of scar tissue to a point, after all everyone on here did purposely pierce holes in their ears. Anyways, just do some massaging with vitamin E oil to reduce the scaring (its the best out of emu, and jojoba oil to use for relaxing straight up scar tissue).
Have fun stretching, message anyone if you have any more questions, here to help