Might depend a bit on circumstances - defending stores, foragers at home in grotty weather.
However I have found they generally retain their docility. Likewise they probabaly never improve if they are straight up in the air, following, etc.
Just that either you put up with bolshy bees or re-queen. The second option is probably the better, but your nice docile queen will generally give offspring which are closer to the norm for the area - less docile. That is why Buckfast queens are so much in demand.
Regards, RAB