It seems that SamMobile has some new information for the Samsung Galaxy S4, and a new date: Coming March 15th, Shipping To Europe in April. The availability of the Galaxy S IV will be in the eastern countries from Europe first. Whole Europe and Asia are expected to receive the Galaxy S IV before the end of April. America, Australia and Africa will receive the Galaxy S IV around May / June. 

The accessories for the Galaxy S IV (Clear Cover, Flip Cover, Protective Cover, Pouch, Extra Battery Kit, Wireless Charging Kit, HDTV Adapter and Headset) are planned for week 15 which also hinted for an early Galaxy S IV April release! the 5" AMOLED screen based phone that handles a resolution of 1920x1080 pixels. The new generation screens should be more energy efficient. The Exynos 5 Octa SoC is likely to be used with the Galaxy S IV, that is an octa-core processor. Apparently the Exynos 5 Octa does not have an embedded MALI chip for graphics anymore, yet the has be swapped out for a graphics processor from the PowerVR line of products. Likely the PowerVR SGX544MP3 with it's GPU cores clocked at 533MHz.