As noted by Bladestorm in another topic, it looks like the Wave 3 stock has been delayed for HK, but has shown up in the Philippines... so should be out in HK (and their online stores) soon.

Wave 3 includes...
Legends - Groove, Viper, Warpath
Deluxe - Rook, Streetwise, Firstaid, Blades
Voyager - Hotspot, Cyclonus
And Leader wave 2 is being found too - Thundercracker