What will be my filing status ? Married June 20 Wife (US citizen) has a 11yo child and adopted her They live in Japan now and will come to US in 2021 She quitted job

All questions were put into 1 line unexpectedly, so here is formatted one.
- Married June 20
- She (U.S. citizen) has a 11 years old daughter and I adopted her (She is a permanent resident status)
- They live in Japan for now and will be coming within this year (so, not qualified for half-year test)
- She quitted job for this move

I am wondering if I can claim married file joint and claim child as a dependent or I should file as married separately