For anyone else who was hoping for more info on this - The new He-Man armor is actually a new figure for next year named 'Snake Armor He-Man'. Rather than being a permanent new look for He-Man, this is actually another He-Man variation figure similar to the Jungle Attack, Martial Arts, and Ice Armor He-Man figures. It's actually pretty cool in my opinion - very interesting looking, very much in keeping with the character and feel of He-Man and certainly much preferrable to a simple repaint of the standard He-Man figure like Smash Blade He-Man.
The reason for the Snake Armor is to better equip He-Man for battling the Snake Men, who, according to Mattel, are going to be a major focus in both the toy line and the second season of the animated series for next year. Storywise, the armor equates to the idea that "the power of Grayskull protects and prepares He-Man." Thus, with King Hiss and the Snake Men coming - the old furry loin cloth and metal straps simply won't do; He-Man is going to need better protection than that, and the 'power of Grayskull' decides to give him an armor upgrade.
I can't wait! Here's a pic for those of you unable to get old of the recent Toyfare magazine: