I think anyone expecting the cybervault to be more than either a slick cybertruck / Tesla inspired locker or maybe power station is going to be surprised (it has a cheap looking barrel lock on it, nobody uses those for any kind of serious security) and appears to be around 19-20" tall, too small for any kind of range extension or power wall type activity, larger than most wall lockers that might have this sort of cheap security.
I'm not sure if the apparent charge receptacle is just for looks or if this really has batteries in which case it would be something like a Jackery / Anker / EcoFlow type portable power station (good for powering small electronics for a good while or one appliance for a short while, but no powerwall or range extender), but very odd to have a lock on it if so.
If that leaked image is legit, I would not expect the "Cybervault" to be more than yet another neat gimmick product on shop.tesla.com, much like their wireless charging pad. So everyone should probably curb their enthusiasm.