Okay a few things I'd like to see from future updates.
1. Skip to Weekend, yeah it's already been said multiple times but it would be a massive convinience especially when you've already done everything else the game has to offer you.
2. A more gradual curve in the games difficulty, to be real the biggest grind in the game is the first hour after that you'll be making so much money there isn't any point to earning it after a while. The game needs a better balance.
3. More things to buy, honestly this comes back to number two on my list as well but even buying the cars barely dents the bank after a while. if the cash inflow doesn't change then maybe make it possible to buy more things to have some use for the cash.
That's about it for the major stuff that I can think of, several people in this thread have also mentioned a couple of good ideas as well.
As for me personally I'm really looking forwards to the Pregnancy content, hoping it's not just an ending but actual conent.