i got the following ideas to discuss:
1) death
it should be allowed and regulated to die. and as such to get children and let them continue the game...
2) mystic characters
should be allowed before the industrial age. but they should follow rpg rules like being killable and such. also they should comply to the conflict rules and event rules for fighting.
3) conflict rules general
it should not be allowed to opt out. all land owners should be aware that they can loose their land. this will force them to think about whether land-owning is really such a good idea before nationalism
4) conflict rules ending with nationalism?
nationalism should not end the conflict rules, but allow an addition: the nation can draft any unused military unit to stop fighting among its citizens by force. so if a "house" decides to fight another one and the nation wants peace, the nation can draft all unused military units (all not belonging to the 2 houses in conflict) to stop the fights (for example occupying the cities they own etc.). it should also be allowed for the nation to draft one unit of any kind in each city of the nation on each TC. this way the nation can stop any fight.
in addition, it should not be allowed for persons to hold city tiles after nationalism. they can occupy a city, but not own it or draft units from it.
in addition, the units can of course be used for military games far after nationalism.
5) the bank
the bank should be allowed from the beginning. but stocks not. the only way to share the income or to raise some money unitl economics is discovered should definitely be the selling of parts of the ownership, not real shares.
6) land sales
land sales should be allowed from the beginning, but income should be drastically decreased after nationalism.
reason: before nationalism people "own" the land and can get taxes of their people, and as such have to support their own army. after it, they can trust in the nation to protect them and also cant get taxes of their people.
also: we should add bonuses for owning "blocks of tiles" instead of just using the tile-number. a single sole tile does not bring good profit. blocks of tiles should bring MUCH more profit instead.
this will also raise the land sales, as every1 will try to get bigger blocks (we could add factors for 5-tile blocks [x2], 10-tile blocks [x3] and 20-tile blocks [x5])