Thank you for your support and the suggestions!
The money is indeed, obsolete, the role it has is an "early enabler". I'll probably add more things that use money but I don't plan to make needed to farm it.
I don't plan to implement a "tired" system, but I may add in the future a construction event where the player can chose to work hard or slack off, giving two different results depending on the choice.
I won't add a "random encounter nemesis", in this game at least, the "mood" of the game is more relaxed, without forced events. That said, I may add something like that in a future game if I plan it with more experience.
For now I don't have more "competitions" in mind, my plan was to finish the base story of each character, ending each with a special event like the already implemented date and competition.
I don't know, the game will reach the 1.0.0 version when I feel like it is complete, I can't tell if I'll add more after that or not.
Sure, my email is always open for suggestions, but don't be too detailed, as I like to add stuff with my own touch, thank you for your words!