My calculator and dect phone are probably the only computational devices in my house that don't have mom installed.
But I'm thinking about even smaller scale - individual figures instead of units, every one with complete set of stats and skills, which would determine their roles in a settlement. High INT - lab worker, combat stats/skills and high CHA - exporing party leader, etc. Thea the Awakening style. Research system based on finding the pieces of pre-ITZ tech, not just research trees. And combat should be a better version of F:T turn-based mode, with individual figures using items, wasting ammo and so on. So, all the RPG elements of original fallouts, but wrapped in a 4x.
Edited: I mean, you do not buy soldiers, workers and scientists, you encounter people in the wastelands, maybe sometimes a kid is born in your settlement, all with randomized stats. And later you develop them in to the productive members of your post-apocalyptic society. Equip them and level them up.