FFVIII had blood and wasn't particularly mature. There is also an existing thread about this.

It looks pretty cool, besides the main character and his ridiculous chain-sword weapon. Ultimately though it will be the gameplay that decided the fate of this game. Battle system aside (which, even if it turns out to be a button-mashing fest like KH, will no doubt be fun), I really hope the city ends up being fully-explorable rather then the more linear alternative the series tends to take.