Then maybe your challenge is to find out how the Forum works and what it's overall purpose is. I'll get you started. It's a "players" Forum. Meaning it is almost exclusively for players to communicate with each other and discuss topics both game-related and non-game-related, depending on the sub-forum that a player posts on. The two exceptions to that is the "Ideas" section of the Forum, where well-thought-out specific suggestions may be proposed by players. When doing so, players are required to follow a posted format and adhere to posted rules for such suggestions. The other exception is Announcements and the accompanying Feedback threads. Announcements, obviously, are where Inno (through their established channels) communicates new features, events, and updates. Feedback threads are where players can give their opinions related to the topics of said Announcements. Feedback is the only material routinely relayed on to Inno, and even then it is generally summarized. Ideas that follow the posted rules and are supported by the Forum community are combined with similar suggestions from other international server Forums and forwarded to the developers, who then either ignore them, file them for later, or start working on them. The only way we ever know which they choose to do is if an Idea later shows up in the game.
Now, for your purposes, the Forum is basically useless. You only have vague suggestions to "do something new", so Ideas is out of the picture. And your vague suggestions for change are not tied to any specific event/feature/upgrade, so Feedback threads are also not the proper venue.
Which takes me back to a remark I made very early on in this discussion. Do you remember when I said you should email Inno? That's the only way you will ever have a chance to "get the information" to the people in charge. However, this is post #46 on this thread and you have yet to give any information other than that you're bored. Send them that in an email and it will have even less impact than this thread...which is zero. And maybe you haven't noticed, but not one person here agrees with your assessment of the game or your claim of having accomplished everything there is to accomplish.
I am sorely tempted to temporarily build a city on your world just so I can see for myself how "complete" your city is. If I have a little extra time later, I just might do that.