Yemen 's future is far from predictable after Saleh 's departure , an analyst says . The United States and Saudi Arabia have been at odds over the past year in a conflict that has killed more than 10,000 people since March 2011. The tens of thousands of anti-Saleh demonstrators are likely to play a role . A combination of factors probably led Saleh to finally step down .
Yemen 's future is far from predictable after Saleh 's departure , an analyst says . Armed units from the Saleh family and the al-Ahmar family remain at odds . The tens of thousands of anti-Saleh demonstrators are likely to play a role . A combination of factors probably led Saleh to finally step down .