I have the world business card currently which I have had for the last 6 years or so. I signed up for that card cause it was the only card at that time offered by M&M that had car rental insurance included. So with the introduction of the new world plus card for private users, does anyone know what happens? Would "private" user be automatically switched over to the new card? Do the new cards being introduced as of December / January apply to new signups?