Originally I was just hoping for something to do with Builders once all the base building is complete ( I remember upgrading my fourth Forge to level 20 because why not ).
But.
This topic is awesome.
Devs, you definitely need to add a daily mini game about the builders.
The heroes should not get all the fun.
Maybe after people get bored with Season 3 and Path of Valor.
and all of a sudden im a hardcore capitalist!
It would be great if they added daily challenges just like in the Path of Valor that players can earn up to 10 diamonds a day. What do you think?
It would be awesome for f2p like me lol
Dream on 
it’s a beautiful idea, but doomed to fail due to the lack of real life payment involved
Well, if it may be implemented, it would be sad that the gem mine would yield 6 gems everyday at level 10 of the structure.
A new building that builds gems from common items for those who play free
Now that would be good QOL …
But doubt that it will get the green light because it’s going to impact on “revenue”
Just my two pennies worth
Could be the town jeweler
Well, if SG would realize a building that could make gems, Iam pretty sure you will have to feed it with hard earned money…