If they're not showing it until November, it means either the whole thing will leak before they show it or they won't have third party games ready at launch.
It's neither. There are no third-parties to leak anything. You can probably count the number of western third-parties with SDKs on one hand. This will be the king of Nintendo boxes. That's why nothing has leaked yet. They could pull a Saturn if they wanted to and nobody would see it coming. If they cared about third-party support, they'd at least lift the NDA preventing third-parties from talking about what games they're making for it to to show that it won't be a Nintendo box. They aren't, so we know exactly what it is.