I was under the impression that each 12 hour period would have a bonus in each of the four kingdoms ... so first day each kingdom would have two 3 hour periods with a different bonus.  Today our kingdom had in the first 24 hours of fury 3 of the 3 hour bonus periods.  One for towers, one for kill enemy and one for invaders/ghosts.

So I guess I was under the wrong impression OR something has changed ... because last 2 furies the pattern of every 12 hour period there was a bonus in each of the four kingdoms.