Attention, owners of the Verizon Motorola Droid Ultra, Droid Mini and Droid Maxx: Motorola has just sent out invites for a software "soak test" for the trio of devices. Nothing definite, but that could well mean Android 4.4 KitKat is on its way. (Or it could be a lesser version. We've got our fingers crossed.)
It generally takes a few days for the soak test update to push — and it's entirely possible the update will push to everyone — soak test or not — at the same time. It's happened before.
More: Verizon Droid forums; Thanks to everyone who sent this in!