It is currently unknown if the Cyclonus/Heatseeker wave, which has already been spotted in markets outside the US, has been outright skipped in the US or if it will be coming out after the legion Twinferno wave. While there is currently no listing of the CyclonusHeatseeker wave from any US based store, we should remember that the warrior class waves have been out of order as well in the US. The best example is the US getting a wave consisting of just one warrior class Twinferno along with repacked figures as opposed to the Bludgeon/Thermidore/Twinferno wave which is scheduled to come out later this year in the US, half a year after being found everywhere else.
All to say that the US distribution of this line has not been aligned with the rest of the world for some reason, but the good news is that the toys do seem to eventually come out and the US gets this legion class wave a bit earlier than other countries. So early in fact that there has yet to be any video review for this legion class Twinferno. So if you spot any or make one yourself in the next couple of days, let us know!