If you want to trust History of the Marvel Universe ....

Days of Future past isn't that far into the future. Eventually though, sentinels are over thrown.

Learning pretty much nothing from this, corporations start making cyborg soldiers like Deathlok.

Eventually corporations pretty much replace the government and take control. This is the year 2099.

Eventually, martians attack and over run the earth. This is the Killraven future. They defeated, and the world enters another short age of peace.

The age of peace ends with a nuclear war where Hulk becomes Maestro and rules the planet for 100 years.

We don't really know what happens much after that until the 30th century when the Guardians of the Galaxy are formed and Kang begins his career as the conquerer.

Supposedly Apocalypse's reign begins after all that.