Just an idea, but once driller bots are made and pumping out, it would be nice to be able to interact with the mines so that workers no longer enter them with 3 options (workers, bots or both and initially starts with both as the option)
Another would be to do with getting more variety of vegetables into the meal makers when there are 3+ different crops (could be done by making each vegetable have a different number and they try n put as many different in each meal maker) rather than having a flood of basic meals. I know some of that will come down to planning a base and plots, but sometimes when there's heaps of mushrooms stacked up in the bio-dome and there's wheat in the meal maker, they pick up more wheat to put in.
Another structure idea is like blast doors or a lock-down feature (intruders get into the base, but aren't dealt with soon enough, so you just lock down by closing doors in an area which prevents movement until they shoot through it)
Just ideas to either implement or to let me know if there's already something like this in-game. (I know some of these wont be though)