1_Would be good that in the game possess more surprising quests. That is quests which occurs later x time of the game and it engendered all the game by the choice of the player.
Example: having killed a dragon then make locate by the another dragon, an event will occur in coming 2 weeks as an invasion of dragons. The player can choose to save the province by fighting against dragons with limited time before they destroy all the province or he kills a big quantity of dragons so that the revolt is not made or ( more idea).
2_ Would be good if we can change the world with a good grad for upgrade buildings and forteress . We can engage mercenary for help we or we can give a lot money for upgrade a city .