en dirai

will tell you more about it

→ en
phrase Rare #42,946
will tell you more about it The pronoun « en » refers to something already mentioned or understood from context; the person being told is often specified separately.
FR: Je t’en dirai plus demain.
EN: I’ll tell you more about it tomorrow.

Je t'en dirai autant que j'en sais.

I'll tell you as much as I know.

Je n'en dirai plus que si vous acceptez de piloter l'engin.

I’ll say more only if you agree to pilot the craft.

— Interstellar (2014)

Moins j’en dirai sur l’enquête, mieux ce sera.

The less I say about the investigation, the better.

Je ne vous en dirai pas plus.

I won't tell you anything more.

Je t'en dirai plus sur le Japon.

I’ll tell you more about Japan.

Je t'en dirai plus tout à l'heure.

I'll tell you more later.