We of SamMobile can confirm, Samsung is busy to introduce a new high-end device! SamMobile just received the first model numbers of Samsung's new high-end device. The Samsung GT-I9500 and GT-I9505 (probably LTE version). We know that Samsung's first TIZEN developer device is using GT-I9500 as it's model number which could mean TIZEN is close to come, or, other possibility is that Samsung changed the model number of the next-generation Galaxy S device. Like we said before, number 4 is believed to be bad luck in Korea. Also, by doing some research we found out that Samsung has never used the number 4 as its product code in high-end devices. Another strange thing is that Samsung is still making 2 versions of this device. We hoped to see Samsung's next flagship a global device, like the iPhone 5. This is just a rumour but we can confirm Samsung has started doing first software tests of its new flagship model of TIZEN or Android. GT-I9500 and GT-I9505.
Model: GT-I9500
I9500XXALL1/I9500OXAALL1/I9500XXALK3
Model: GT-I9505 (Probably LTE version)
I9505XXALL1/I9505OXAALL1/I9505XXALK7
Thanks tipper