I know this should be Improvements, but it is easier to go here. Even though new jobs won't come in a while, but ideas can still be made.
How about farming? (Not using bombs on grass I mean how the heck could you call blowing things up farming?) I mean using rakes and futuristic tractors and you can spend money to grow plants but you can get a lot of money. You can also level up and there is grass you can cut to find treasure chests with rare-new items.
Ex for plants: Spend $75 for strawberries and get $750 and it takes 36 hours to plant
Ex for leveling up: Start at level 1 and you can only plant blue berries (1) every other time you level up you can plant one extra plant (lvl 1=1 lvl 2=1 lvl 3=2)
Ex for chest: find a chest and find an awesome body


I forgot to add this (Thanks Triton) that when you pick the items you grew you can eat them to help heal you. A good way to make food. Plus gets rid of the idea of freebies like in era.