Spoilers for 164:
Apparently Larry Hama addressed the sneak peek error on his facebook page. This was posted on the boards at joreloaded.com:
Larry Hama: "I was never big on continuity or plot. The whole RAH storyline was retcon in motion."
So the sneak peek error was Larry Hama's. IDW should have caught it, but man, that's a bit of a gaff. Hama's comment shouldn't be much of a suprise for most fans, as he's said as much about his writing philosophy in the past, but there's a difference between not being big on continuity and bringing a character back from the dead.
Oh well. I'm just waiting for the brainwave scanner junk to end, and hopefully move on to something different.