Wrong. The S4 has been fitted with the 800 processor and is on sale in Korea with LTE Advanced. It also has tri-band capabilities. Please view the article below.
http://www.zdnet.com/au/samsung-tests-dual-mode-4g-galaxy-s4-and-gs4-mini-on-optus-network-7000018827/
As for the date, I am afraid the guy said it would be November 1st, and judging by Sprints latest upcoming handset list (which did not mention the G2 anywhere...) i am assuming my friend was correct. (I found this screen shot on engadget!)
FYI, I have had my upgrade available for 2 months and am dying to get the G2, so I am gutted if it is November launch. Complete bummer.