Avengers Infinity War Spoiler Talk. Time To Spoil the Crap Out Of It!

@RealTalk - I think giving him time stone was the only way some of them survived to fight another day. Thanos would have killed everyone to get them otherwise.

@RealTalk - maybe that was the vision he saw that half had to sacrifice themselves to win the war. Said the same thing in civil war, some of us have to lose so we can win

@Jaspion - that's precisely how my theatre reacted to all those events

@PsychoticSpaceRaccoon -
"what is the "threat" of Avengers 4?"

Half the universe is effectively gone;
- With no Xandar and Guardians, the cosmic realm has no Nova Force to defend it
- With no Asgardians, the nine realms are going to fall into chaos
- With no Sorcerer Supreme, the Earth and other areas are open to attack from magical methods

Plus the Avengers themselves are weakened heavily - most of the strongest Avengers are dead or stranded.

Honestly, a rather basic entry-level threat would be enough to challenge them. I think the post-credit scene teased the idea of more Chitauri/Outrider/Necrocraft heading towards New York and other locations so perhaps they will all just be enslaved or oppressed and have to rise-up and change things back somehow.

Most logical threat would therefore be a continuation of the Captain Marvel villains - the Skrulls - who could easily replace some of the people who are missing, such as Hawkeye who never appeared and who may appear in a different persona when we see him in Avengers 4.

@Thecondor14 - Spidey's death hit me hard.