Looks like these might be coming out sooner than I had thought... or the factories produced them first to send out early for Hasbro Warehouses to sit on (like the Movie Titans, which arrived in Australia three months before their release, and were accidentally released to Toyworld before they were even revealed at Toyfairs)

Two have been found on ebay from an Asian source (probably a factory worker), which is Sideswipe and Steeljaw.
Bumblebee is the other toy in the wave, but hasn't been seen yet.