Hard to say, as there are massive variations in ages for growth spurts in non-diabetics, let alone diabetics. My googling suggests that T1s often have delayed puberty, which logically suggests that growth is probably delayed too. Some non-diabetics continue growing at your age, so there's no reason to suppose you won't be one of them. Whatever happens, you'll have the best chance of a good result if you manage to get and keep good control of your diabetes. Good luck.
And well done on taking control of your diabetes. You aren't the first (and probably not the last) T1 teenager to have periods of poor diabetic control. I certainly did at your age.