Recent telephone diplomacy between the U.S. and Russian presidents, including a 90-minute call on October 9 focused on energy supplies and Ukraine, has elevated expectations for an in-person encounter. Kremlin aides have publicly noted both leaders' interest in meeting on the sidelines of the November 18-19 APEC summit in China if attendance aligns, building on earlier September signals about potential trilateral discussions. U.S. envoys continue shuttle efforts toward peace proposals, though Moscow has deferred immediate trilateral talks amid Ukrainian drone strikes and election-related tensions. These verified diplomatic exchanges and scheduled multilateral events represent the primary near-term catalysts traders assess for bilateral summit timing.