I'll sign the petition for a zoom-function - both on the strategic and the tactical map.
And a little thing that irritates me when fighting detailed battles: The way the camera instantly jumps from one unit to the next when the last action has been performed, so sometimes you don't get to see the results of your order (I don't want to miss the cool new animations...!). This is aggrevated by the seemingly random way you jump through your units when giving orders, as you might be thrown form one end of the battle-line to the other without warning and apart from missing out on some action and results of your latest move this jumping back and forth across the map can be quite disorienting. At least, I don't think it makes for very fluent gameplay.
Perhaps the unit 'jumping' could be a little less random and based on your army organisation - next unit is always from the same division etc... That would also encourage realistic battlefield manouvering, ie. keeping divisions together etc...
Also adding to the jumping effect is the fact that your moves are intermingled with your opponent's, but I really like this feature for other reasons, so I would hate to see it go.
Anyway, that's all I can think of right now. Back to the game!
I quote from the final draft of the manual, so this is probably what you'll find in the final product:
Delay Bar/Display Speed
This option is accessible from the ‘Advanced Menu.’ It controls the speed at which action occurs on the screen, including how fast messages are displayed. Click on the bar at the level of speed which you wish the battle to be displayed at; the shorter the bar, the faster the speed (and the longer the bar, the slower the speed).
Try that and see how detailed battles go for you.