Morita Yosuke, the assistant recording director of Bleach anime, denied the rumor and said "The airing schedule has been fixed far in advance and it won't be ended soon." ROOKiEZ is PUNK'D removed the post in their blog.
Source: Morita's tweet
Note: It can be a misunderstanding of the singer.
Japanese rock band ROOKiEZ is PUNK'D leaked in their official blog that this winter season will be the final of Bleach
anime. ROOKiEZ is PUNK'D sing the new ED theme song of Bleach.
Source: ROOKiEZ is PUNK'D's official blog