Non riveliamo il colpo di scena; semmai ne discutiamo.

Italian often drops subject pronouns when they are already clear from the verb ending.

• riveliamo = we reveal
• discutiamo = we discuss

So Non riveliamo... already means We don’t reveal... without needing noi.

If you added noi, it would sound more emphatic, like we in particular:

• Noi non riveliamo il colpo di scena...

They are both present indicative, first person plural.

• riveliamo = we reveal
• discutiamo = we discuss

In Italian, the present tense can express:

• a general habit
• a policy
• something happening now
• something stated as a general rule

Here it sounds like a general principle: we don’t spoil the twist; if anything, we discuss it.

In Italian, non normally goes directly before the verb:

• Non riveliamo
• Non capisco
• Non voglio

So Non riveliamo il colpo di scena is the standard way to say We do not reveal the plot twist.

Here semmai means something like:

• if anything
• rather
• at most

So the sentence contrasts two ideas:

• We don’t reveal the plot twist
• If anything, we discuss it

It suggests a correction or soft contrast: not that, but rather this.

A learner should know that semmai can mean different things in other contexts, such as possibly or in case, but in this sentence the meaning is clearly if anything / rather.

Yes, but the nuance changes.

• Non riveliamo il colpo di scena, ma ne discutiamo.
  = We don’t reveal the plot twist, but we discuss it.

This is perfectly grammatical and straightforward.

• Non riveliamo il colpo di scena; semmai ne discutiamo.
  sounds a bit more nuanced: we certainly don’t reveal it; if anything, we discuss it.

So semmai adds a shade of correction or qualification, not just simple contrast.

Ne stands for di esso / di questo / del colpo di scena — in natural English, about it.

The verb here is understood as discutere di qualcosa = to discuss something / talk about something.

So:

• discutiamo del colpo di scena = we discuss the plot twist
• ne discutiamo = we discuss it / talk about it

In other words, ne replaces del colpo di scena so you do not have to repeat it.

Because ne is used to replace something introduced by di.

Here the idea is:

• discutere di qualcosa = to discuss / talk about something

So:

• discutiamo del colpo di scena becomes
• ne discutiamo

By contrast, lo replaces a direct object:

• Lo vediamo = We see it
• Lo riveliamo = We reveal it

So in this sentence, ne is the natural choice because the meaning is discuss it / talk about it, with the underlying di relationship.

Not always. Italian allows both patterns, though usage can vary by context and style.

• discutere qualcosa = to discuss something
• discutere di qualcosa = to discuss something / talk about something

In this sentence, the speaker uses the di pattern, which is why ne appears:

• ne discutiamo = we discuss it / talk about it

So a learner should recognize that discutere can work in more than one way, but here the sentence is clearly built on discutere di.

Because it refers to a specific plot twist, not just any plot twist in general.

• il colpo di scena = the plot twist
• un colpo di scena = a plot twist

Here the sentence is talking about the particular twist in question, so the definite article il is natural.

Because Italian often avoids repetition by using a pronoun or particle.

Instead of saying:

• Non riveliamo il colpo di scena; discutiamo del colpo di scena

Italian uses:

• Non riveliamo il colpo di scena; semmai ne discutiamo

This sounds more natural and less repetitive.

The order is normal for Italian.

• semmai = adverb
• ne = clitic particle
• discutiamo = verb

Clitic pronouns and particles like ne, lo, la, ci, mi usually come before the conjugated verb:

• ne discutiamo
• lo vediamo
• ci penso

So semmai ne discutiamo is the expected order.

The semicolon links two closely related clauses while marking a stronger pause than a comma.

• Non riveliamo il colpo di scena; semmai ne discutiamo.

It helps show:

1. first clause: what we do not do
2. second clause: what we do instead / if anything

A comma would also be possible in some informal writing, but the semicolon makes the contrast cleaner and more deliberate.

It is mostly neutral, but semmai gives it a slightly more careful or polished tone than a very basic everyday phrasing.

For example:

• Non riveliamo il colpo di scena; semmai ne discutiamo.
  = neutral, a bit refined

A more plain version might be:

• Non riveliamo il colpo di scena, ne parliamo soltanto.
• Non lo spoileriamo; al massimo ne discutiamo.

So the original sentence is natural and correct, with a somewhat thoughtful tone rather than slangy speech.