Well, maybe not right now, but still, something to think about :D
1. I'd like to be able to smelt the tools we don't need. Perhaps we've upgraded to a better too, maybe we bought a new one and want to get rid of a broken one, or maybe we've decided not to pursue that particular skill tree. We could smelt broken tools to get back 1/4 of the metal, and regular tools for 1/3 or 1/2 of the metal :D
2. Random fireflies in our houses. It's not a new idea, but I know there are many of us who'd like them!
3. New verb for friends who are online - "Join". I'd love to be able to join my friends for questing/mining or whatever suits my fancy at the moment. Whilst in-game, click on the name of a friend who's online, then click on the "Join" verb. Then you would get an option to teleport via coin or energy (like we do now with the party packs).
4. Ability to hold more bags. I see room for two more bags at the bottom of my screen! I hope this means the ability to hold more is coming soon. Could even be an upgrade... ;D
More coming - this is all I can remember at the moment~