Set images of the LEGO 2018 Marvel Infinity War have been published by Brick Heroes. There are 6 retail sets for this movie. Some additional images of the sets can be found on the Brick Heroes articles itself.
76108 Sanctum Sanctorum Showdown
76107 Thanos Ultimate Battle
76104 The Hulkbuster Smash-Up
76103 Corvus Glave Thrasher Attack
76102 Thor’s Weapon Quest
76101 Outrider Dropship Attack
via The Brick Show