From the official Mozilla blog post: "Mozilla is kicking off an exploration" "Directory Tiles will instead suggest pre-packaged content for first-time users." "While we have not worked out the entire product roadmap, we are beginning to talk to content partners about the opportunity, and plan to start showing Directory Tiles to new Firefox users as soon as we have the user experience right"
Sounds like early days, the news article made it sound like a done deal.
I think UP is a much more interesting project in terms of advertising and improving how the web works. https://blog.mozilla.org/labs/2013/12/user-personalization-u...