Yeah, but they are supposedly retired and their last album was only last year anyway and they've been touring since then. No time to write or record a new album. They did the old songs to get control of them, and the covers are just tossed in there to fill it out.
Personally, I'm getting annoyed with these re-recording albums. I like re-imagined old songs, but faithful re-recordings are just annoying. It's the same song to all but the most discerning fan. I know why they do it though, record companies control the old classic recordings.