I love the game. I played this twice and then we played lords of waterdeep a 'proper' board game. It was easy to prefer mint works.
The only frustration is that it is so quick, I feel there is enough here to merit a 45 to 60 minute game, with a bit of pollish.
So how about a board game where the tin fits into the board, it can be the factory or something. The 'bigger' game would have some further depth, some extra components and depth, but then when you go travelling you can take the original tin game with you
I would be very happy to see a full blown 'Mint Works' game developed. I really like the combinations you can make with the cards in this tiny game, i could only imagine a big LoW size game done like this.
But part of the appeal of Mint Works is that it is tiny.