In a recent Q&A about Avengers: Infinity War, which the Russo brothers refused to answer questions about Avengers 4 at; revealed that they had considered another character for the big blockbuster. Thor’s well-known adversary, Beta Ray Bill; could have appeared in the third Avengers movie.
Beta Ray Bill has been discussed many times by the Russo Brothers but they could never find a good fit for the story.
— /Film (@slashfilm) November 29, 2018
This was the second time Beta Ray Bill could have been in the MVU, having possibly been considered for Thor: Ragnarok. The MCU is still young, even with ten years in; so who knows if one day we may see him! Would you have liked to see Beta Ray Bill in Infinity War?
Source: Heroic Hollywood