Utilizamos el present continuous con valor de futuro para describir acciones de futuro que hemos decidido realizar con toda seguridad.
I’m meeting my friends this evening.
I will meet my friends this evening.
They’re playing a concert in Madrid in August.
They play a concert in Madrid in August.
El present continuous con valor de futuro suele ir acompañado de expresiones de tiempo.
I’m cooking dinner at 7.00.
We’re seeing Diego on Friday.
They’re playing tennis after school.