Twitter post in japanese - https://twitter.com/#!/AkihiroHino/status/164289157525544960
Not a formal announcement, but the 2nd line there translated says "The setting and scenario of Layton #6 are one of a kind."
hooray
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http://i.imgur.com/pRjIr.png
http://www.yourgamercards.net/trophy/a/CaptainRockman.png