This is what probably is going to happen.

[Etude in B Minor]

I seem to recall reading that the reason the magnetic pole is different than the rotational pole is that the magnetic field is caused by a molten metal mass at the core of the planet which is rotating differently than the rest of the mass. As the mass of this magnetic blob is (significantly?) less than the rest it can slip around without causing a big change to the overall rotation pole. Its rotation is probably also affected by the solar magnetic field and the solar wind. This might be the reason that it shifts around from time to time and waxes and wanes in strength.

In my opinion Ra is talking about the magnetic pole when talking about a pole shift, as the magnetic field would have the most influence on life.