**The "No" outcome at roughly 60% implied probability reflects the significant hurdles facing two of the three required milestones.** While Taylor Swift and Travis Kelce's August 2025 engagement and reported June 2026 wedding plans keep that leg on track, Tom Holland and Zendaya have yet to begin formal wedding planning amid heavy film schedules, pushing their timeline into uncertain territory. Most notably, Timothée Chalamet and Kylie Jenner—dating since 2023—have generated only insider speculation about a possible 2026 engagement with no public confirmation by mid-June, as reflected in a separate related market pricing their odds at just 24%. Traders are pricing in the high bar of all three events occurring before year-end, with career demands and the absence of firm announcements acting as the main drags on consensus. Upcoming red-carpet appearances and any direct statements from the couples remain the clearest near-term catalysts.