Okay the SpaceX booster recovery might not yet be a "trend", rather a recent game changing development that will alter most future space launches. Their ability to recover and reuse boosters will radically reduce the cost of launches and will give SpaceX a unique advantage over competitors for some time, until they all catch up.
One trend that will be come evident in future missions will be a significant jump in processing capability. Recent tests have shown that current cellphone SoC's are as good at resisting radiation as the specifically hardened dinosaur CPUs that NASA has been using. We will be seeing a huge jump in sophistication of missions as a result and better power utilization. That still is primarily robotic missions, but it seems like the private sector is going to start driving more and more of the ambitious exploration.
"lower voltages and smaller geometries significantly increased the resistance to radiation errors."
Was that a typo? Do you have data backing up this claim?
My understanding is that lower voltages and smaller geometries REDUCE the resistance to radiation errors, ie: for the ICs used in todays smartphones, exposure to radiation will increase the rate of occurence of data errors, compared to the older, larger ICs operating from higher voltages (5V). I have heard that the old 486 was the last IC that US military would accept for radiation hardened applications.