Valve's pattern of phased, unannounced Dota 2 event updates creates the near-even odds on Dark Carnival Act 2 arriving before year-end. Act 1 launched in late June 2026 with new personas and sets, followed by Chapter 3 "Midnight Run" additions in July, yet no official roadmap or further patches have surfaced through September despite a 7.41f gameplay update. Traders weigh Valve's history of slow, surprise-driven releases against the three-month window remaining and the event's open-ended run from June onward. Any TI follow-up announcements, datamined staging server activity, or a sudden patch before December could rapidly shift sentiment either way.