Given that MP Soundwave has only JUST come out in Japan, and Hasbro Australia are planning on selling it here in July-September, I'd say it's more likely to be an imported TakaraTOMY version. i.e. Hasbro Australia have obtained permission from TakaraTOMY to directly distribute and sell that toy here (like they did with MP Ultra Magnus, MP04 Convoy /w trailer and Ghost Starscream).
My concern is that if it's a TRU exclusive, it may not be cheap... because TRU are kinda inconsistent with the price policy of their exclusive Transformers. e.g.
+ Well priced = MP Starscream, Rodimus & Thundercracker
+ Expensive = MP Grimlock and Optimus Prime
+ Ridiculously Overpriced = MP Ghost Starscream, G1 coloured Deluxe Jazz, TRU exclusive Universe Voyagers (e.g. Darkwind, Countdown etc.)
I personally hope that MP Soundwave will sell here for the "well priced" range... because honestly, if it hits $150, you might as well as well import it yourself. Costs about the same and you get the toy sooner. If you're gonna get a local toy later, then you ought to pay less (I'd say $130 or cheaper). Perhaps someone would like to get in contact with Hasbro or TRU and see if they have any idea about how much they would like to charge for this toy?