I love the sound of these new changes/features and can see the reasoning behind a lot of it 
One of the things I've noticed (which hasn't been mentioned) is that Kings/Vice Kings can never delete and get no fealty rewards after abdicating. I think this is a great move in discouraging Temp Kings being used throughout the server.
(putting my "Player" hat on)
My wish is to take these changes 2 steps further. 
The 1st step .......
I would like to suggest, that a longer delay is added to Gov's deletion, as I think 3 days is too easily abused & if the time period were 10 days or 14 days it would discourage those "Multi account makers" from benefiting from menhir abuse as much.
- Because it would take them longer to recycle the same account.
- The account would be on the map for longer, so there wouldn't be as much room to accommodate them all, making it harder to keep repeating the process.
- The Multi accounts would become a lot more obvious on the Map, making them easier to spot and report, leading to more investigations and possibly bans?
But also if the player deleting had to stay for longer than 3 days, "The 3 day rule" may have kicked in and they may have calmed down & reconsidered their reason for deletion and could cancel and stay.
To further add this if a player did have legitimate reasons to delete, his villages could be chiefed by his own team, rather than there not being time to allow this to happen and the villages being lost completely. If they are deleting, it doesn't really make much difference if it's longer than 3 days, as they gave up anyway.
The 2nd Step ........
Is to totally discourage those who are still abusing the menhir.
Please consider Not removing Fields when menhiring, some will not agree with this as they say it will stop them speed settling as fast, but it would only be a few hours slower and menhir was never introduced to be a tool to speed settle with anyway.
It was possible to speed settle before menhir, it will still be possible to achieve without fields being reset. 
Without menhir abuse the battlefield would be more balanced as there would be no quick turnaround of resources being farmed, which is why menhir is being so heavily abused at the moment.
I think whilst we're making changes, lets address what is already being abused as well. Then players will be happier overall 
Thanks for bringing us some new features, cant wait to see how they play out 