Samsung Galaxy S III being the GT-I9300, why wouldn't the new Galaxy S IV be the GT-I9400? As we pointed out last week, the number "4" is considered to be bad luck in Korea which is why it would seem that the Korean based Samsung will skip that number and go straight to the GT-I9500 series. In addition to the information about the GT-I9505, the firmware for the Samsung Galaxy S III mini includes a mysterious model number, the GT-Q1000. It could be a new line of smartphones for Samsung.
So to recap, the firmware for the GT-I8190N points to the GT-I9500 and GT-I9505 being the Samsung Galaxy S IV and the LTE enabled model of the Samsung Galaxy S IV. It also reveals an unknown GT-Q1000 model. January 8th is when CES 2013 opens in Las Vegas and you know we will find out a lot more then.
source: SamMobile via AndroidAuthority