Spoiler: The update is there is no update. Which is still kind of an update, right? Let's just go with it.
It's widely believed that Johnson will be released by the Titans if he's unwilling to accept a pay cut from the $8 million he's due in 2014. From all indications, Johnson isn't interested in that.
With free agency on the horizon, decision time is coming. If Johnson isn't going to get the $8 million, the Titans might as well free it up for somebody who will.