it's taken him 5 years to do this one and it still has a heap of bugs, issues, design flaws -  and even Pinballstar admits it's not it the same league as a Stern, he is selling some purely because of the price.
Mike stated something a while back the next game was purely for the Chinese market - so possibly just new art on the same layout I would bet.

As for the shipment going to Canada I bet half those go to Pinballstar in the USA as he is friends with Tommy and they were going to do a share freight deal as stated in a recent Kaneda podcast interview. So here is Mike who was never targeting the US now sending most of his games and the first ones to boot to the US - he must be desperately trying to find sales.