Hey there! Thank you so much for your comment. <3
Yes, we are working on our first content update right now. It will have new maps, quests and scenes with existing characters (and probably new ones too).
As for your other questions, I must say there is very little chance of us changing (or even expanding) current mechanics like work minigames, simply because working on them wouldn't bring us any joy and it doesn't seem like it's necessary for most of the players. We think that adding more new content will benefit the game more than tweaking the existing one.
I hope you'll like what we have planned.
All the best for you,
Macamagucha