We've touched on roadmaps a little before, but let's take a good ol' look at the concept in more detail. In tech, roadmaps can form crucial paths for development. In games, roadmaps have become a crutch - a buzzterm used to clothe the lack of content when a game is sold.
Roadmaps are the latest disguise for what's been happening in "AAA" games for years - software being pushed out in a half-baked state to make as much money immediately, with a plan to add value to the product being relegated to a distant secondary concern. We know where we're going, but we can't say where we've been.