They've been going to re-start production after their move "in a couple months" for several years now, if what I hear on the Asylum SET forum is right. Best bet is to check there for a real-world update. Gordon Rankin has a close relationship with them and is usually authoritative when he says something about current-production WE tubes. My guess is, the economy took some wind out of their sails - but they still have the tooling etc. so I'd be surprised if production did not eventually resume.