Why'd you book your holidays before the calendar was officialarised!
You know what the FIA are like, they'll make minor changes to anything provisional just because they can. I'm intrigued as to the reasonings behind all this, though. Such as switching Japan with Korea.
Edit: Grand Prix of Jersey sounds much better than Grand Prix of the Americas or whatever the hell it's called. But ideally it would be United States Grand Prix East and United States Grand Prix South
Please no, I hated those old names