Top Choice (low GPA), What are my Chances?

I’m visiting AU in a couple of weeks for the second time, and have an interview with the regional rep. soon after.
Currently a senior, but am planning on taking a gap year for international volunteer work (teaching at a third world school for 8 months). Looking for international relations and economics in college.

Unweighted GPA of 3.4, weighted 3.8. Unfortunately, I’m only top 40% of my class.
SAT 1420, essay of 29.
Very rigorous high school schedule:
Freshman year: AP Chem, Honors World History, Honors Algebra II, Honors English, French II, Latin I, Band
Sophomore year: AP Bio, Honors Advanced Math, Honors US History, Honors English, Honors Band, Latin II
Junior Year: AP Physics C, AP Calculus BC, AP Macro, AP Language and Comp., IB Latin
Senior Year: Dual-enrollment Multivariate Calculus, Dual-enrollment Introduction to Java, AP Literature, IB Latin, Honors Government and Law, Spanish I

I took every AP class my school offered other than AP Statistics, and have glowing recommendations from my math teacher that I had 3 years and Latin teacher I had all 4 years.

EC’s
Eagle Scout (10 years of Boy Scouts)
2 years of volunteering with Safe Passage schools in Guatemala
Club tennis for 8 years, HS varsity freshman year
3 years of golf team
4 years indoor track, 3 years varsity, captain senior year
3 years outdoor track, 2 years varsity, captain senior year
4 years Junior Classical League, school officer, attended state conventions all 4 years and national convention 3 years
3 years of Model UN
Selected to District Band sophomore year

I know my GPA is low, but I struggled with some family problems and health issues freshman and sophomore years, made honor roll both semesters junior year however, and my current grades and even higher- hopefully high honors this semester.
Do you think I could get in if I applied ED?

I think you have a good chance going ED as it’s 89% for ED1. Especially because your grades have an upward trajectory and you have taken a very rigorous course load. Your class rank will not matter as it is not considered at AU. By chance is your GPA on a 5.0 scale? If so AU will consider you GPA as 3.8 and then you would not have concerns about your GPA at all.