How things seem to............from Rico

This just seems to be how things work, how the World works...
- The Antonine Plague coincided with a major turning-point in the Roman Empire.
- Major sovereign debt defaults were followed by the Black Plague.
- WWI was followed by the 1918 Flu pandemic.
- The Great Depression was made even worse by the Great Dustbowl.

And now?
- What will follow the current sovereign (and municipal) global debt crises? What?