I have a not very well thought out irk that I wanted to throw out there. One issue I have with futuristics, particularly ones that depict the end of our current civilization due to various reasons whether it be war, natural resource depletion (which would likely lead to war), population overcrowding (probably linked to natural resource depletion), disease, etc., is the governmental formation of these future worlds.
If they are post Earth, what is the likelihood that these governments would be democractic in any way? Wouldn’t it be more likely that future worlds formed after the demise of “earth” would actually reject the way in which the First World countries ran things (i.e., some form of democracy) due to the belief, rightly or wrongly, that the “old” form of running things led to natural resource waste, failure of population control, and so forth?
I guess this should be some form of poll question, but it seems to me that the way in which the government/ruling class of futuristic, or even paranormal or high fantasy, should be addressed in regards to why/how it is different. Lois McMaster Bujold once called the SFF genre as being a political fantasy. Is that important to you as a reader?