The Diplomacy of Delay: What Happens on April 6?

Trump Iran deadline April 6 what comes next

With Trump's new deadline of April 6 for Iran to reopen the Strait of Hormuz now set, European governments, energy markets, and diplomatic observers are watching closely to understand what happens next. The possibilities range across a considerable spectrum.

At one end: a genuine agreement emerges in the coming days, Iran takes credible steps to reopen the strait, Trump declares victory, and energy markets begin to normalise. At the other end: no agreement is reached, Trump follows through on his threat to strike Iranian power plants, the conflict escalates significantly, and Europe faces a winter energy crisis more severe than anything since 2021-2022.

Between these extremes lie several more probable scenarios. One involves continued deadline extension: Trump finds another reason to delay, the diplomatic process continues inconclusively, and the geopolitical uncertainty persists while gradually extracting economic costs from all parties.

Another involves partial agreement: Iran allows commercial shipping to resume while retaining some control over the strait as a diplomatic card, energy markets partially normalise while the broader conflict remains unresolved. A third involves internal Iranian political change: the extreme pressure of the military campaign and economic isolation produces a shift in Iranian decision-making that creates space for a more comprehensive agreement.

European policymakers have limited ability to influence which of these scenarios materialises. What they can do is ensure that European energy infrastructure, diplomatic channels, and economic support mechanisms are positioned to respond effectively to whichever one does.

The uncomfortable truth of the current situation is that European policy, for all its sophistication, is substantially dependent on decisions made in Washington and Tehran that European capitals can observe but not control.