According to The Verge, the latest episode of its podcast asks whether John Ternus can find Apple's next big thing. The show features Bloomberg's Mark Gurman, described as the world's best-sourced Apple reporter. Gurman is also the host of an upcoming podcast called Power On.
Apple held its annual iPhone hardware event earlier this month, and the episode's description suggests the conversation is tied to that event. The excerpt does not include Gurman's conclusions or any specific product details.
Because the source is a podcast description rather than a reported story, it does not confirm what Ternus's plans are. It does, however, signal that the question of Apple's post-iPhone future is a topic of active discussion.