On his Power On podcast today, Bloomberg's Mark Gurman insisted that Apple plans to hold an "online home event" on Tuesday, October 13 to introduce an all-new smart home hub, a new HomePod mini, and a new Apple TV 4K, all with Siri AI. It is not clear if Gurman is referring to a feature-length, live-streamed event video, or if he considers a series of Apple Newsroom press releases and per-product…