Prior to EC, I was under the impression that Destroy would only destroy Reaper code and tech. Meaning EDI, built around Reaper technology, would die. Even if she could be rebuilt, she would not be the same. Therefore: dead. The geth had Reaper code. But they were more than that. Even if the Reaper code was destroyed, there would be something left and they could rebuild; they were already headed towards this when they turned to the Reapers and were offered a shortcut. So in theory, they could survive.
After EC, I have no idea. Unless they're living in quarian suits until they can rebuild their platforms/consensus/superstructure, I'd have expected them to at least be mentioned.
Honestly, the whole thing still feels like sacrifice for the sake of sacrifice to me. That said, if Shepard had died in Destroy (regardless of whether or not they lived in Control/Synthesis) and the geth had been fine, even with EDI dying too, I'd be more inclined to believe things weren't so stacked against this option.