Avengers: Infinity War - Has it Actually Only Been a Year?

*Image taken from Wikipedia.

The Greatest Cinematic Event of 2018. All the MCU, brought together. Yes, if you even had the slightest interest in the MCU, Avengers: Infinity was a must see for you last year. Obviously, this is your #1 rewatch movie for Endgame, the bare minimum for Thursday night.
Any summary would not do justice to all the moving parts, plot lines being drawn in throughout the MCU, references made to the enjoyment of the MCU fandom. So no, I will not be summarizing here; go watch the movie. I'm planning to rewatch it again the Thursday of before the movie.
If for some reason you can not rewatch before Endgame, I'll refresh some key info for Endgame.
First off, The original six - Iron Man, Cap, Thor, Hulk, Black Widow, and Hawkeye (though not shown in Infinity War) - survive the dusting, as do Nebula, Okoye, Rocket, Captain Marvel and War Machine. We have been revealed that Pepper, Happy, Wong, Valkyrie, and Ant-Man outside of the film as well, all these characters getting Endgame character posters. Oh, and Vision's body didn't turn to dust, so... could mean something...?
The dusted include Star-Lord, Drax, Mantis, Spider-Man, Scarlet Witch, Black Panther, Doctor Strange, Bucky, Falcon and Fury (Maria Hill too, but she doesn't get a character poster). Outside of Infinity War, Wasp and her parents get dusted, Shuri is shown in a trailer to be part of the dusted as well, and both Loki and Gamora died during Endgame, their bodies not having been recovered.
Doctor Strange viewed the future possibilities of their fight with Thanos, only winning in one. Yet, he sacrifices the stone to save Tony, who was not dusted, but on Titan with Nebula. So it is very likely that this is Doctor Strange's master plan, him knowing that Tony needed to survive in order for them to defeat Thanos.
When Thanos snapped his fingers, we momentarily see him in this orange haze, with young Gamora. Theories speculate that he too was dusted, or has access to both the dusted and undusted parallel universes. We see him on his farm afterwards, but the trailers for Endgame indicate that he strikes again.
Hawkeye was with his family during all of this.
Captain Marvel is paged in the end credit scene by Nick Fury before he gets dusted.
After the snap, the gauntlet is all fried up.
The soul stone requires a soul for a stone, and was being guarded by Red Skull, from Captain America: The First Avenger. The theory that the Avengers will take the gauntlet and snap everyone back would therefore require a sacrifice. And the only couple we have are Iron Man and Pepper, Black Widow and Hulk (if we want to stretch that still) and the possibility of Valkyrie being with Thor, though the fandom has also speculated her being with Captain Marvel. Additionally, in the comics War Machine and Captain Marvel are a thing, but I doubt they'll be a couple, seeing their one interaction in the trailers and that interview that, in my opinion, shows Brie Larson's horrible character, despite the attempt of the network to make it feminist Larson standing up to Thor.

There is another theory that the reason Banner wasn't able to turn into Hulk is because it is actually Loki in disguise. While Loki has been confirmed dead, we all know "dead" doesn't mean dead in the MCU necessarily. Even if not Loki, why wasn't Hulk helping out?
Wong has remained to guard the sanctum (probably not making balloon animals...)

Weren't all the Asgardians dead, killed by Thanos? But then why is Valkyrie still alive? Yes, we've been told that some escape, but does that give Loki another chance to come back?
Speculations have been made that time travel will be used to bring everyone back. But how far back? Only for the dusted? Gamora? Loki? All the way back to the Ancient One, Quicksilver, or other fallen heroes? (We do know the Ancient One is going to appear in Endgame...)
Thor went for the chest instead of the head. That has got to be eating him off. Star-Lord got off easy, not having to live with the guilt that because of him half of the universe died (unless the whole parallel universe theory is true...)
Instead of telling us the Avengers or the surviving will return, we are told that Thanos will return. Will things have turned to Thanos side? Will Endgame put us more on his side of the field? Is Thanos to receive redemption?
Nebula and Iron Man were alone on Titan. One of the big questions had been, what will happen to them? The trailers have shown us these two heroes back on Earth, but how did they make it back?
Iron Man's suit was already wrecked pre-dusting. Is Tony at risk of attack without his suit?
Honestly, the list goes on and on. So just go rewatch the movie, even if you've already lost count of how many times you have seen it! Go now!