Remember that long stretch of time where we didn't even know the Avengers 4 title and there was nothing but radio silence from the Russo Brothers and Team Marvel? That time is dusted, my friends, and we are in the official lead-up blitz to Avengers: Endgame. Earlier today, the studio released a giant batch of character posters, using black-and-white and color to reveal a few heroes who got dusted (Shuri, nooooo) and a couple that survived (Happy Hogan still out here thirsting for vengeance). And if you're still coming to terms with all that, so …