Is it possible that Thanos will also appear in Avengers 4??
Of course he is. ‘Avengers 4′ is still a continuation of the Infinity storyline. Thanos is a two part villain. The Russo Brothers have confirmed this multiple times. People seem to have gotten confused about this just because they said ‘Avengers 4′ will have it’s own title instead of simply being called ‘Infinity War: Part 2′