Cid's invented devices to interfere with the tech of things like Alexander and Omega, so it wouldn't surprise me if he comes up with a way to completely shut down the Weapons and prevent them from engaging Oversoul once we've damaged them sufficiently; though I'm still not expecting anyone other the two white-haired Au Ra to survive as they're obviously being given greater importance then the rest.

It looks like he's at least created some kind of mecha of his own to deal with whatever Weapon comes next judging from that Ultima Warrior with the Garlond Ironworks color scheme in the patch preview.