I have read many ideas and while some are good (IMO) and some are bad (also IMO) most of them have already been suggested in the past, but that is not the problem.
I would like to ask Admin one question with a possibility of 3 answers, they're not meant to upset but I believe the community deserves to know.
The lack of game development (and I mean big things like when aid, destructive wars, improvs, wonders were added) is due to?
1. Kevin doesn't want to do more
2. Kevin doesn't care either way
3. Kevin doesn't know what to do more with the game.
If it's 1 or 2, we the community should know, we'll keep playing with what we got until we have it and then we'll all fade away from where we came from, but at least we're clear with the future of this game.
If it's 3 then there's the possibility of opening it up to contributors, there are players who know how to program, some might even be willing to do this pro-bono. I know the filtering of trustworthy people takes time, but it's something to think about.
Another idea could be to sell the game to somebody to will develop on the idea that is CN.