Something I love to see is pools of mercenary's consisting of several regions like in RTW vanilla. This might help stop the insane merc. recruitment of for instance the romans in germania.

Another minor suggestion (unless there have been changes since 0.81a) is to change the descr_event_images.txt file with these changes.:

Code:
building_completed
	icon	settlement
	heading_items	6
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		bodystring	left   verdana_sml  khaki	left
		image		center
		spacer		 8
		multistring left verdana_med  black	center
		multistring left verdana_sml  khaki	left
	}

unit_completed
	icon	military
	heading_items	5
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		image		center
		spacer		8
		multistring left verdana_med  black	center
		bodystring	left   verdana_sml  khaki	left
		spacer		8
		multistring left   verdana_sml  khaki	left
	}

retraining_complete
	icon	military
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		image		center
		spacer		8
		multistring left verdana_med  black	center
		bodystring	left   verdana_sml  khaki	left
		spacer		8
		multistring left verdana_sml  khaki	left
	}

building_repair_complete
	icon	settlement
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		bodystring	left   verdana_sml  khaki	left
		image		center
		spacer		8
		multistring left verdana_med  black	center
		multistring left verdana_sml  khaki	left
	}
as opposed to the original:

Code:
building_completed
	icon	settlement
	heading_items	6
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		bodystring	left   verdana_sml  khaki	left
		image		center
		spacer		 8
		string		center verdana_med	black
		multistring left verdana_sml  khaki	left
	}

unit_completed
	icon	military
	heading_items	5
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		image		center
		spacer		8
		string		center verdana_med	black
		bodystring	left   verdana_sml  khaki	left
		spacer		8
		multistring left   verdana_sml  khaki	left
	}

retraining_complete
	icon	military
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		image		center
		spacer		8
		string		center verdana_med	black
		bodystring	left   verdana_sml  khaki	left
		spacer		8
		multistring left verdana_sml  khaki	left
	}
building_repair_complete
	icon	settlement
	format
	{
		title		center verdana		black
		string		center verdana_med	khaki
		bodystring	left   verdana_sml  khaki	left
		image		center
		spacer		8
		string		center verdana_med	black
		multistring left verdana_sml  khaki	left
	}
which will prevent text from overlapping:



Last two are the current situation, top 2 are with the changes above.