Tim Cook is finally stepping down as Apple’s CEO after 15 years at the helm. On Thursday, his recently named successor, John Ternus , made his first earnings call cameo as the incoming CEO and gave a veiled glimpse into what Apple enthusiasts could expect from his tenure. “We have an incredible roadmap ahead, and while you’re not going to get me to talk about the details of that roadmap, suffice it to say, this is the most exciting time in my 25-year career at Apple to be building products and services,” Ternus told investors. When asked about his advice for Ternus, Cook said to “never forget” that Apple users are “the North Star for the company.” “We’re about making the best products in the world that really enrich other people’s lives. And if you keep focusing on that and make your decisions around that, it will produce a great business, and we’ll be able to build more products and do it all over again,” Cook said on the call.…