Your SAT scores are great. Your SAT subject tests are great. Your French is way stronger than you will need, but will help make Montreal more interesting for four years. Your GPA is great.
Admissions at McGill is very stats oriented and relatively predictable. Your stats are great.
I think that you will hear good news relatively quickly. I also think that McGill is great for linguistics.
Yes, McGill is great for Linguistics! My D18 is studying Cognitive Science with a Linguistics concentration. She really, really likes the program. All of her Ling profs have been fantastic.