Sheliss Elleness Zurbach suddenly appears out of the blue in modern day Tokyo. Destiny has brought her to the human world, destiny in the form of an evil adversary named Gilva. Needing help in tracking down her enemy, she enlists a sexy demon killer.

Is Bleach anime completed?

As of now, there has been no official announcement.
Fans (like me) do hope that the anime will resume after the manga is finished (since the manga is in its last arc), possibly because they don't want to make any fillers. But I won't recommend having high hopes for this.
Its sad but we have to live with it.