concluded
Announced
In production
Releasing
Completed
32 years have passed since the initial defeat of the Invaders. A.E.G.I.S is all but dismantled now and has become an underground organiziation consisting of only a few Gate Keepers left to save humanity. One of the members, Ayane Isuzu, is sick of society as a whole, though she continues to defeat the Invaders out of spite for her father. Suddenly, she learns of the revival of Machine General (Kikai Shogun) and Devil Count (Akuma Hakushaku), but a mysterious ghost girl now accompanies them. It is up to Ayane and the remnants of A.E.G.I.S to stop them and save humanity once again.
(Source: Anime News Network)
(Source: Anime News Network)
Last updated
Oct 28, 2026, 06:23 AM
Franchise overview
Franchise timeline
Review every Courcast-tracked season for this series and jump between entries.
Renewal pulse
Courcast score breakdown
CourScore weighs signals for an official sequel announcement within 18 months, blending attention velocity, completion strength, and catalogue health.
CourScore
19.6
CourScore measures renewal signals out of 100. It is not a calibrated probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: Medium • Updated 8 hours ago
Top reasons
- Cohort rating percentile - 61th percentile within season cohort
- Titles like this rarely return - 24 years with no new entry: of OVAs and specials (later entries in a franchise) in that position, 2% got a new season or film within 10 years
- Time since finale - ~296 months since estimated air window ended
Runway
Unknown
Source runway is unclear, so feasibility is treated as unknown.
Financial & Commercial43
Production Feasibility27
Audience Reception52
Strategic Priors29
Fandom Engagement50
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:23 AM
Next scheduledin 16 hours
Renewal FAQ
Gate Keepers 21 renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Gate Keepers 21 getting a new season?
- According to Courcast's latest analysis, Gate Keepers 21 has a 20/100 renewal signal score. This score is updated daily and blends fandom momentum, streaming signals, source-material runway, and franchise history. Check back regularly for the latest forecast.
- Will Gate Keepers 21 be renewed?
- Gate Keepers 21 currently scores 20 out of 100 on Courcast. Signals driving this estimate include online discussion volume, sequel history within the franchise, and platform engagement data - all recalculated daily. Scores from 70 indicate strong renewal signals; scores from 85 are labelled very likely.
- What is Gate Keepers 21's renewal probability?
- Gate Keepers 21's CourScore is 20 as of the latest update. CourScore is Courcast's proprietary metric that aggregates over a dozen renewal signals - from source-material runway to social buzz - into a single daily signal score out of 100.
Latest signals
Fresh telemetry
Courcast watches every connected signal to surface the freshest indicators of momentum.
| Source | Metric | Geo | Value | Collected |
|---|---|---|---|---|
| anilist | average score | GLOBAL | 62 | Oct 8, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 18 | Oct 8, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 2,277 | Oct 8, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Oct 8, 2026, 12:00 AM |
| ann | rating | GLOBAL | 6.84 | Oct 25, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 24 | Sep 10, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 9 | Sep 10, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 75 | Sep 10, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 10, 2026, 12:00 AM |
| filmarks | mark count | JP | 54 | Oct 8, 2026, 12:00 AM |
| filmarks | score mean | JP | 72 | Oct 8, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Sep 9, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 5 | Sep 13, 2026, 12:00 AM |
| justwatch | jp platform count | JP | 1 | Oct 8, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 4 | Oct 8, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 1,580 | Oct 8, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 6,730 | Oct 8, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 68.44 | Oct 8, 2026, 12:00 AM |
| mal | chapters total | GLOBAL | 14 | Oct 26, 2026, 12:00 AM |
| mal | completed | GLOBAL | 6,861 | Oct 8, 2026, 12:00 AM |
| mal | members | GLOBAL | 11,595 | Oct 8, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 3,637 | Oct 8, 2026, 12:00 AM |
| mal | rating | GLOBAL | 6.18 | Oct 26, 2026, 12:00 AM |
| mal | source members | GLOBAL | 724 | Oct 26, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 2 | Oct 26, 2026, 12:00 AM |
| mal | watching | GLOBAL | 405 | Oct 8, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 5.63 | Oct 26, 2026, 12:00 AM |
| mfc | figures total | GLOBAL | 0 | Oct 23, 2026, 12:00 AM |
| mfc | goods total | GLOBAL | 1 | Oct 23, 2026, 12:00 AM |
| mfc | media total | GLOBAL | 2 | Oct 23, 2026, 12:00 AM |
| mfc | merch added 30d | GLOBAL | 0 | Oct 23, 2026, 12:00 AM |
| mfc | merch total | GLOBAL | 3 | Oct 23, 2026, 12:00 AM |
| niconico | episode comments | JP | 11,525 | Oct 8, 2026, 12:00 AM |
| niconico | episode mylists | JP | 7,317 | Oct 8, 2026, 12:00 AM |
| niconico | episode views | JP | 601,127 | Oct 8, 2026, 12:00 AM |
| comments 7d | GLOBAL | 38 | Oct 8, 2026, 12:00 AM | |
| mentions 1d | GLOBAL | 1 | Jul 11, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 2 | Oct 8, 2026, 12:00 AM | |
| score 7d | GLOBAL | 1 | Oct 8, 2026, 12:00 AM | |
| thread count | GLOBAL | 2 | Oct 8, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 2 | Oct 8, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.18 | Oct 8, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 566 | Oct 8, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 67.5 | Oct 8, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 64 | Sep 24, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 4.48 | Oct 8, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 4 | Oct 8, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 17 | Oct 27, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 260,870 | Jun 17, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 1,290 | Jun 17, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 17, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 17, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 13,579 | Jun 17, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 13,579 | Jun 17, 2026, 12:00 AM |