If you stay in your home for one more year, how long will you be/have been living there?
have been
Do you think you’ll be living/have lived in the same city in ten years’ time?
be living
What will you be doing/have done next summer?
be doing
Will you work/have started work by the time you’re 25?
have started work
Do you feel as if you’re on the point to start/of starting a new period in your life?
of starting
Are you on the verge of -finish/finishing- your school studies?
finishing
Do you reckon you’ll be getting/have got married by the time you’re 30?
have got
By the end of this year, how long will you be/have been studying English?
have been