Amazon has added the second wave of Ranger Keys, from Toy Wiz. The first wave is from Amazon, reasonable prices.
Toy Wiz has the second wave of Ranger Keys in stock, but at large prices.
They added Super Mega Blaster, Saber, Armored Might figures, Hand Gear, Morpher, Hero Sets and Megazord of Super Megaforce. You can't order them online yet though.
Toys R Us
They added the first wave of Ranger Keys and the Hand Gear