I am going to be meeting my family at WDW in January. They are touring Florida and spending the last 4 nights at the Grand Floridian. Due to work, I will have to take a separate flight a week later. The plan was to put me on the original reservation with tickets, dining plan, etc. Do I need to do anything as far making changes with Magical Express, the new Magic Bands, or do I need a different reservation since I am arriving at a different time?