Trader consensus on the Muse Spark 1.4+ release market reflects the absence of any official announcements or credible reporting from Meta Superintelligence Labs since the September 2 launch of 1.3 and the October 15 open-weights Muse Spark Open checkpoint. Release cadence for numbered versions slowed after the initial four updates in 2026, with recent emphasis shifting to open-weight distribution and agentic tooling rather than incremental closed-model upgrades. No developer conferences, earnings commentary, or API roadmap signals have emerged in the past 30 days to indicate a near-term 1.4 drop, leaving the “no release by November 30” outcome as the dominant market-implied probability. Traders are watching for any late-November Meta Model API updates or internal progress leaks that could alter timelines before year-end.