Its time for Halo to get a release every year.

[Leynos]

Ah yes oversaturation and franchise fatigue.

CoD is more like a sports series with the same audience coming back. Broader appeal. Halo is more specific and like any console maker's mascot. Those are more reserved for every couple to few years to make a better quality product and not saturate it too much. Cod is more like Madden at this point. Halo would just die this way. I'd argue it got too much in the 360 and early XBO era as sales went down and spinoffs kept coming out then soon in the bargain bin shelf. Halo isn't CoD and doesn't need to be.