End of Katekyo Hitman Reborn (Anime) Confirmed!

According to the Katekyo Hitman Reborn (anime) website, anime was announced to end on September 25th by the episode 203 "Atarashii Mirai e (To the new future)". The TV anime has animated up to Mirai-hen (Future arc) of the original manga.

Source: http://www.tv-tokyo.co.jp/anime/reborn/