My friend is travelling to the airport. She 'll /'s going to catch a plane.
In the future we won't travel by plane. We're going to / 'll travel by spaceship.
It's raining outside so we 'll / 're going to get wet.
In 2050 every person in the world will/ is going to have a mobile phone.
We're going to / 'll discover life on other planets in the future.