No idea if someone said it on the update thread already, but with the addition of ingame help, I was thinking that you could add a help message about inheritance when a player dies. I see people not knowing about that mechanic every other day, so it would help the population not decline too much if newer people could see that information before coming to the forum to start a thread about how unfair the game is.
Also, maybe increase base inheritance to reduce the gap between power players and casual players when they die.