Syria: Assad is gone but what is next?

The fall of Bashar al-Assad was almost unthinkable just a week ago, when rebels started their astonishing campaign against the regime from their base in Idlib, in Syria's north-west.

This is a turning point for Syria. Assad came to power in 2000 after the death of his father Hafez, who ruled the country for 29 years - and very much like his son, with an …