Just to be sure, you’re aware that there’s actually almost no local operation with the smartthings V2 hub, right? It’s still basically a cloud-based architecture.
The only things that will run without a connection to the SmartThings cloud on the V2 hub is the official smart lighting feature (and then only with some device type handlers) and some parts of smart home monitor. For example, routines do not run locally, the Phillips hue and harmony integrations do not run locally, notifications do not run locally, no custom code run locally. Also, the SmartThings mobile app on your phone cannot talk to the hub without going through the cloud, even if your local Wi-Fi is still up. So you won’t be able to do anything with the mobile app if your Internet access is down.
A minimote using the stock device type handler Will be able to run locally with a smart lighting automation, but you can’t use the minimote locally to, say, disarm smart home monitor or change mode, or turn on a hue bulb.
You may already know all that, just wanted to be sure.