I don't recall Apple saying "no comment" on this. What I recall them saying is that Obj-C will be fully supported for the foreseable future.
The clang compiler is up-to-date and modern in its design. There are probably not going to be any significant language enhancements, but that's not news — there has not been much in the way of change since Obj-C version 2, which was, what?, 10 years ago? (Well, aside from the changes made for Swift interoperability.)
Aside from that is the obvious point that the vast majority of macOS and iOS code is written in C or Obj-C, and it's unlikely the existing code will ever be re-written in Swift just for the sake of changing languages.
So, if you're comfortable in Obj-C, then there's no need to switch to Swift unless you want to.