Haven't found anything on the board about this thought.
I've played the game once so far, but as a house rule Initiative does not shift from turn to turn.
The mage with the highest Mana pool gets the initiative-marker.
From reading the rules I want to prevent a player from casting a 20-point monster as a last action when being 2nd player and getting to move with it as 1st player when the marker shifts position.
I also felt it quite unnatural when a mage pumps out a devil-demon from the depths, he will be the one that acts faster next round.
Just my thought.
Mathew