Well, now we're sufficiently underway in this arc, I think it's time I addressed some of the usual assumptions people seem to make about characters that Oda took in a completely unexpected direction.
Scarlet lives apart from the royal family. She must have been outcast for marrying a gladiator.
Nope. She left and her family were happy with it.
Kyros must have been injured by Doflamingo or one of his crew.
Nope. He cut off his own leg.
The unnamed gladiator in Block B looked familiar because he's Kyros.
Nope. King Riku fought like that back in the day, and was the only person to injure Kyros in 3000 fights (look closely at Kyros' forehead).
Think of any others? Leave them in the comments and we'll discuss.