Foxconn allegedly refutes claims that the Coronavirus outbreak will delay their ability to fullfill a recent 80 million unit order of iPhones. Among this order is rumored to be the new iPhone SE2 / iPhone 9, meaning that it would still be on track for a March unveiling.
https://www.notebookcheck.net/Coronavirus-won-t-delay-production-of-the-iPhone-SE2-iPhone-9-says-Foxconn.452812.0.html