So I have this idea that 343 could add a playlist for Halo Insiders for testing new maps and modes. As an example the playlist would be enabled during season two and 343 can give us some new maps to test with game modes where 343 thinks it works and we give feedback. So 343 can add the new content during a new season if all works out perfectly.
I mainly would like this, to avoid bad map/ game mode combinations and even to improve the existing one since 343 could rework a map with new cover or different weapons spawns and the players and say how they feel about it.