The name, which is already trademarked in Japan, has recently popped up in several forms on the United States Trademark Office's list, filed Feburary 1st of this year. Each of the U.S. trademarks' serial numbers is a trademark for Wii No Ma.

77925246 - Trademark seemingly relating it to the Wii and specifying the hardware that Wii No Ma will run on.

77925190 - Trademark that mentions uses over communication networks such as restaurant reservations and accommodations.

77925233 - Trademark relating the name to games, such as simple card games and traditional board games. 

77925227 - Trademark relating the service to advertising through online media such as videos and promotional material, coupons, retail services and other goods.

77925217 - Describing an online bulletin board service for sharing information.

77925212 - Describes various entertainment services providing games and movies. May be a general trademark describing the service as a whole.

77925201 - Mentions the "rental of storage area of server and providing information thereon; providing meteorological information via the Internet." Possibly relating to the server space that the online videos will stream from.