Seems phenomenally improbable. It would basically require a ground-up rewrite of the entire app layer of Java just so that lazy iOS developers can do an even more half assed job of porting their apps over.
Is Swift actually a good language, what's good about it? From a general perspective. Been using Go, and love it. Many innovative changes to basically be a C for our century. What's Swift, what have its designers learned from the past to make a better language?