UPDATE: California Adventure has confirmed that Soarin’ Over California is scheduled to end on April 21st.
They have also added some exclusive ride time for Annual Passholders, who can soar for an extra hour after regular park close on March 11th, 18th, and 15th (as long as they are in California Adventure before it closes).
In celebration of the Disney California Adventure Food & Wine Festival, Soarin’ Around the World will once again be temporarily replaced by the fan-favorite Soarin’ Over California beginning February 28th.
The Festival is scheduled to end on April 21st, however Disney has not said if Soarin’ Over California would continue beyond that date, just that it is a limited-time run.
Source: Orange County Register