Board Thread:Naruto Discussions/@comment-24948125-20140516145318/@comment-25075055-20140516151213

Utakata was expanded on during the anime-only filler arc Tsuchigumo Kinjutsu Arc. The others don't really seem important enough, unless Kishi wanted to introduce them in some way (relating back to the time when Naruto met with all the jinchuriki / tailed beasts, apart from Gaara/Shukaku respectively) to pad out the story after the completion of the war.