Bonjour Anne !

Thanks you for that interesting question :)
Indeed, the "future" point of view is also part of this lesson, and thanks to you, it's now been added to it. So to answer your question, you use the same terms for the future as you would for the past point of view, i.e. le lendemain/la veille etc

I've now added extra examples to show this in the lesson.

I hope that's helpful!
Merci et bonne journée !