No credible indicators suggest a direct US-Iran diplomatic meeting by April 15. The geopolitical friction scalar is too high; current indirect channels haven't signaled any pre-negotiation track readiness for proximal engagement. Absent a significant de-escalation framework or publicly acknowledged high-level backchannel activation, such a direct parley within this compressed timeframe is implausible. The operational window is too narrow for foundational diplomatic architecture. 95% NO — invalid if official third-party mediation is confirmed before April 10.