On the note of inactive neighbors, one thing I would like to see. After a player has been inactive for a week, it would be nice if the game could go through and finish their main hall upgrade, so that other players have an option for neighborly help. Too many players seem to leave the game after playing for a few hours / days after having started a main hall upgrade. The main hall upgrade never finishes until they are finally deleted by the system. After two players upgrade their builders, their neighbors are left with nothing to give neighborly help for as the main hall is never completed and they have not progressed far enough to have any culture you can donate to. They are as bad as an empty plot.