If going from sunny to in the shade of some object (in other words, not shade caused by a cloud or other overcast conditions) there won't be much of a white point change.
If, on the other hand, a cloud moves across the sun or cloud cover causes you to go from sunny to overcast light quality there will be a change in white point that needs to be addressed.
Take this with lots of salt: I've only shot 6 tapes of footage.