It's confirmed. Please see this article.
Japanase some sites told that Nintendo applied new trade mark 'Pokemon Adventure Camp'. However, AAPF checked the official database IPDL (Industrial Property Digital Library), it NOT found at the moment.
We will check it continuously.
[ Applied trade mark from Nintendo ? ]
[ Searching result as of 11 Feb 2012 PM3 ]
[ Reference ]
2ch : GameHard#19398 (log),
Games Blog : Hatsima