Well they do. For them of course there is no time during enemy turn. But end of their current turn is also beginning of their next. So in other words in current turn they should already know what they will do in next turn. So they prepare (and that preparation is going on during enemy turn - except there is no time to measure it for them). That is what I meant.
This preparation shouldn’t mean that they will have more time in next turn. This is valid for soldiers who have AP left or not. If they have AP left it means that they just have done something more efficiently in current time frame. But it doesn’t allow them to extend their next time frame. I hope I am clear here. 