Wow! I didn't expect anyone to play for so long! I think you might have played even more than me (and I played a lot!)
Your ideas are good. I know the game is not super interesting once you've unlocked everything because there's no "end game" to tell you it's over. I've been wanting to go back to the game and add something for the endgame but it's not a priority to me right now. Though, knowing that people are still playing does feel motivating!! :D
Send me some screenshots! By email