on en aura

we'll have some

→ on
phrase Rare #31,878
we'll have some A form of avoir in the future tense: on means “we” or “people,” and en replaces something introduced with de or refers to an amount of something. Depending on context, it can mean “we'll have some of it” or “we'll need it.”
FR: On en aura assez pour tout le monde.
EN: We'll have enough for everyone.

On en aura pour une heure.

It will take us an hour.

— Les Lundis au soleil (2002)

On en aura au plus la moitié.

We'll have at most half of it.

— Salyut-7 (2017)

Je ne pense pas qu'on en aura encore besoin.

I don't think we'll need it anymore.

— Running Man (2025)

On en aura vraiment besoin ici.

We’ll really need it here.

— 3 Idiots (2009)

On en aura besoin.

We'll need it.

— L'Accusé (2017)

J'espère qu'on en aura pour notre argent.

I hope we get our money's worth.

Je ne sais pas si on en aura l'occasion.

I don't know if we'll have the opportunity.

— Voyage à Tokyo (1953)

On en aura jamais fini avec ces feuilles.

We'll never be done with these leaves.

— Heureux comme Lazzaro (2018)

On ne sait jamais quand on en aura besoin.

You never know when you'll need it.