Here is an oddity for you - the cool Transformers Prime Arms Micron Capsule Toys series just might be seeing them light of day outside of Japan. A recent catalog update
(PDF link) for UK retailer Esdevium Games - distributor of hobby products including board games, collectible card games and other goodies - included on its final page under toys and collectibles a listing for "Transformers Figure Packet", showing a picture of the Arms Micron capsule toy Optimus Prime and a previously unseen blindbag packaging featuring the Transformers Prime logo and pictures of the six toys in the first assortment of Transformers Prime Capsule Toys.
This would seem to indicate that at the very least the UK might be getting the first series of Arms Micron Capsule Toys at retail, marking the first release of these toys outside of Japan. However, Hasbro UK has stated they have no plans to release these items, creating some confusion. Although if you read into the product codes, you can see the first three letters on the page correspond to the manufacturer (TOP = Topps, for example). These are listed as TOM - possible shorthand for Tomy? Stranger things have happened - ultimately until we have a confirmed purchase at retail in the UK or elsewhere, this is only a possible release, but it seems likely given the popularity of blind-packed impulse buy items at the checkouts in UK supermarkets.