What will he do this year? (0%)
He (definitely) won't move houses.
What will she do this weekend? (75%)
She'll probably go to the movies.
What will happen in his life? (100%)
He'll (definitely) get divorced.
What will she do this year (25%)
She probably won't move to a different country/travel abroad.
What will happen in their lives? (75%)
They'll probably share a house.
What will he do this year? (25%)
He probably won't fall in love.
What will they do on the weekend? (0%)
They won't go to the beach.
What will she do this year? (25%)
She probably won't celebrate her birthday / throw a birthday party.
What will happen to them in the future? (50%)
They may/might go to college/do a course in .../get a degree in ...
What will they do this month? (75%)
They'll probably do volunteer work.
What will happen to them in the future? (50%)
They may/might have children.
What will happen in their lives? (50%)
They might apply for college.
What will she do this year? (100%)
She'll (definitely) get her driver's license.
What will happen in her life? (100%)
She'll (definitely) start a business.