Julia, I finally got around to reading this article, and I really enjoyed it. Luckily, we were already doing many of the things you suggested! Your focus on "True North" and 12-18 month objectives is really helpful at driving the thinking toward more pragmatic prioritization.

How do you tactically construct roadmaps for quarters 4, 5 and 6? Typically, I only create plans for Q+1, Q+2, and Q+3 which have ~75%, ~50%, and ~25% confidence respectively. Q+4 and beyond are lumped into a single category with very loose prioritization. In my experience, putting those items on specific quarters raises more questions than it imprecisely answers.

Product Management, pizza, and podcasts.

Product Management, pizza, and podcasts.