We mentioned several weeks back that Glaive and the Black Order would be potentially appearing in the Avengers Infinity War. Confirmation of this came out via twitter that he will be in the movie.
Newsarama had the tweet which came from The Daily Mail.
The Tweet shows on location photo’s of an actor in a motion capture suit holding what looks exactly like Glaive’s staff (also shown for comparison.) It should also be another that Glaive quit working with Thanos to go work with his son Thane who first appears in New Avengers #10 (Vol. 3), which could be huge if he should appear on screen.