Obviously my explanations of the new design are not good enough, so I’m showing a picture of the motor “in action” (with magnetic flux) so everyone is in the same page regarding the magnetic circuit. Click to see the full sized picture.
You can see that the plate that stands in the middle of the stator and holds the stator teeth is not part of the magnetic circuit. The stator teeth are completely traversed from one rotor face to the other, hopefully without any deviation in between. This makes for a lighter and easier to build motor than if we were to force some flux into the middle plate.
The pink zones are where there is magnetic saturation (if the material is iron-alloy).
Here’s another one, just in case.