US President Donald Trump's recent bilateral meetings and phone calls with Ukrainian President Volodymyr Zelenskyy, alongside separate contacts with Russian President Vladimir Putin, have advanced US-mediated peace efforts without producing a trilateral leaders' summit. Ongoing Russia-Ukraine negotiations involve delegation-level talks on territory, security guarantees, and ceasefires, yet core disagreements persist amid battlefield developments and stalled progress into mid-2026. No official announcements or scheduling signals point to all three leaders appearing together before the 2027 deadline. Traders assign the "No" outcome 94.5% probability, reflecting the absence of diplomatic momentum for such a high-profile joint appearance and the structural barriers posed by entrenched positions on both sides.