Loki didn't receive a huge amount of screentime in Avengers: Infinity War but his violent death at the hands of Thanos certainly helped set the tone for the movie and made it clear that no one was safe.
Despite that, there's a lot of fan theories doing the rounds that Tom Hiddleston's God of Mischief is still alive and that he faked his death the same way as in both Thor and Thor: The Dark World. Throw in the fact that Disney is planning a TV series on its streaming service revolving around the character, and it's looking like he's still alive... right? During a recent convention appearance, Tom Hiddleston simply wasn't saying!
When a fan asked the British actor if Loki could have been a projection or somehow still alive, Hiddleston responded with: "Your guess is as good as mine." Could that mean the villain is still alive? The door has been left open for that by the looks of it and we could get some answers in Avengers 4...