There rumors about the new Samsung Galaxy S III will receive the newest Android OS 4.1 this Q3 while the Samsung Galaxy S II in Q4.
Samsung has confirmed that the Samsung Galaxy S III will be the first Samsung handset to get a taste of Android 4.1 Jelly Bean. the Samsung Galaxy S III is one of the most powerful smartphones in the market today and it is powered by a QualComm MSM8960 SnapDragon chipset in its internals. It has a dual-core 1.5 GHz Krait processor working in conjunction with a staggering 2GB of RAM to generate the computing power needed by the handset for a flawless performance. The handset is available in a 16GB and a 32GB model in terms of storage space and this can still be beefed up using the microSD card slot of the handset.
We just need to wait until the official release hit the air.