The Gallery looks like it had one, but that seems to have gone already. As I understood it a while back, JMJs would be available in June.
I really like mine. However, I find the relicing very lazy and somewhat unconvincing, as a lot of the dings are too uniform and obviously done with the same tool in a repeating pattern. That said, it's a great playing and sounding bass, that is really well put together (the neck pocket is tighter than a gnat's chuff). Seymour Duncan really should release that pickup to the general public, but I imagine Fender have made a deal where they can't, thus preventing folk upgrading cheaper Mustangs like the Vintera or Squiers.