SPOILER                  
It is "confirmed" via TV Tokyo's Reborn site alone, but they don't have the authority to end the series. That authority belongs to Marvelous Entertainment, Artland, d-rights and Dentsu, since these companies are the companies involved with the production of the series. So far, none of those companies has said anything about the series ending. The only site that has it ending is TV Tokyo's Reborn site.
Confirmed that katekyo hitman will come back in sporing 2011 new title hitman Man Reborn X Generation manga helper info. 
Posted by Online Anime