Unfortunately Kirina the second elephant at the zoo who was to give birth had a stillbirth and lost her calf. She is doing well and recovering but there will only be one new baby calf in the herd, Batu the Male born a few months earlier.
Elephant gives birth to stillborn calf at Syracuse zoo | syracuse.com
Is she a primiparous female?
It may or may not happen in primiparous females to lose a calf or have a stillbirth. While it remains dramatic, if elephants do conceive and give birth once they will re-breed and any further births will be more or less without any complications (this goes down to historical stats ... rest assured).