I'm happy to see that Priest are back. I think the whole "farewell" thing was going to be a farewell tour, but I remember Rob Halford saying that they might remain a recording band only. I wouldn't be surprised if their next tour has a small amount of tour dates. As for the new song, it's pretty good. I'm not blown away by it or anything but Halford sounds pretty good at his age, I must admit. I will be getting this album for sure.
You can listen to the new song right here.