Personally I think it is silly for the trailer that it includes Swahilli/Maghreb region, Brasil and France instead of United States, India or China.
I mean... Currently United States is the main superpower and is really dominating the world, and will remain powerful durig 21st century, so the Great Mistake would have to be something really powerful to devastate them entirely.
And it doesn't seem the Great Mistake was nuclear war - well, at least not in 'apocalyptic' manner ('just 30% of people died, not 99%

) - as we see futuristic Paris which would be one of the first cities to be burned by nukes in case of NATO - Russia - China - Iran - whatever nuclear war.
The lack of China is also strange as it is almost sure this country will be superpower competing with USA during 21st century - and as the Great Mistake doesn't seem to be 'zombie apocalypse killing 99% of humanity' it is hard for me to imagine that 1 200 000 000 people would suddenly stop the fastest industrialisation in the entire human history

India is currently in much much worse shape than China, particularly in terms of poverty and economy, but it is still going to be powerful state in 21st century and it also has its own space race.
So, we didn't see these three powerful countries in the trailer; instead we see:
1) France and cute futuristic Paris. Well, obviously Western Europe is pretty much guaranteed to participate in the space race, but I wouldn't bet France divided by giant ideological issues and with massive muslim population growth would be in the imperial shape

2) Brasil, which potentially can be superpower but currently it is faaar from it...
3) Swahilli and Egypt. Sorry to say that but generally speaking Africa is not going to rise in 21st century - statistics show that this continent is in really tragic shape and most of it is going to remain in this tragic shape in the future... Well, personally I would still include some pan - African faction in the space expansion, but it would be rather centered on Nigeria/Ghana/Kenya. These countires unfortunately also suck but they are the most developed in the Subsaharan Africa (...this doesn't mean good things for the entire continent

)
It is not really important as this is only trailer

just my opinion
