I doubt they'll have those settlements up and running for civilians by 2050. Honestly, if you look at history, the first time we had a person on the moon was 1969, so basically it took them nearly a hundred years just to establish a moon station. I can't hardly call that colonization. Either ways, they still have to research long term effects of living in low-gravity which will take at least another few decades. Also, terraformation is still fiction at this point, if ever it'll be viable which I doubt. But hey, it makes a good story.