This has been asked alot. I think it should alternate either monthly or bi monthly with Iron Banner. example: Week 1 - Regular Crucible Week 2 - Iron Banner Week 3 - Regular Crucible Week 4 - SRL (Just tone down decorations ALOT) repeat or 1 month its Iron Banner, next month its SRL. But I sense this may that might be too long a wait for Iron Banner for many PVP enthusiasts.