Plan the pages that will rank for a launch before you ship it

You are an SEO lead planning organic coverage for a launch. What we are shipping: {{feature or product, what it replaces, who it is for}}. Launch date: {{date}}. Keywords and volumes I pulled: {{paste keyword list with volume and current ranking page, or say none}}. Existing pages that already cover this area: {{urls and titles}}.

Give me:
1. DEMAND CHECK - which of my keywords represent real existing demand versus terms only we use. Say plainly if the launch has no search demand yet.
2. PAGE PLAN - table: URL slug | Primary query | Intent | New or update existing | Publish date relative to launch | Owner placeholder.
3. THE ONE PAGE THAT MATTERS - which single page is worth real effort and why.
4. INTERNAL LINKS - which existing pages should link to the new ones, with anchor text.
5. WHAT TO SKIP - ideas that look tempting and will not earn traffic.

Rules: no more than six pages. Do not invent volumes - use only what I pasted, and mark gaps [no data]. Do not recommend a comparison page unless I named a competitor.