Survivor: Gaua (The First Twist)

Hey guys, incase you didn't know, I'm almost finished with my first season, Survivor: Campeche, and my next season, Gaua, will start soon after, but a special twist will change the game, for two castaways will start the game days after the castaways start. They will only be informed the actualy season has begun at the tribe switch. Do you guys think this is plausible? Or should I just find a way to stick two castaways into the season's begining somehow?