It doesn't look like the 4x10 is going to be a part of the Hot Rod series IV. Several sites no longer carry the amp. I have played through it a few times and always liked it's tone. Large heavy amps just don't sell that well anymore. A friend that works at a large music store said they never stock the DeVille or Super Reverb due to almost zero demand. If it is really discontinued I will miss it. The good news is there are plenty of these on the used market.