- 200 years - Colonies exploiting Jovian and Saturnian moons. Earth stabilized and beginning to re-terraform. Lunar and cis-lunar space a single confederation but one with a lot of tension between components. Map only barely recognizable.
While the one of the historical theme of the development of civilization from about 1000AD has been the consolidation of Nation States and even trans-national entities like the EU, the collapse of the 21st Century has broken those up. Instead we have a networks of loosely confederated polities retaining extensive rights to self defense and yielding little true sovereignty to central authority. Some of the effective polities, such and many of the space habitats, are legally closer to corporations than to states as we would recognize them. In addition, the high level if migration during and after the collapse have left the concept of nation as it was considered normal in the 20th Century entirely unrecognizable. Overall, the political structures are closer to the 15th Century Holy Roman Empire than anything we are used to now.
The three largest groupings are The Cislunar Union (Earth, Earth Orbit, and the Lunar colonies), The Jovian Confederation, and the The League of the Ring Worlds (aka Saturn). However, it is not unknown for interest groups across two or more of groupings to form alliances along fracture lines and compete for resources and power against other members of their own groupings. These contests generally fall short of full-scale warfare, but that has as much to do with the overall availability of resources and the willingness of the central authorities to draw very firm lines around the rights of sub-groups. Indiscriminate bombing, ethnic cleansing, nuclear weapons and planetary bombardment in particular are so firmly sanctioned as to be unemployable by any polities who's leaders wish to die in their beds.