There are three sets that I’ve never seen before (but heard of them through the rumour mill) and one of them is the much anticipated Iron Man Helmet. This follows the new “helmet” range that debuted with the LEGO Star Wars helmets last month.
Update: The piece count should be 480pcs instead of 80pcs. Trials of working on a piece at 3am in the morning. My apologies.
Minifigures: Iron Man, Black Widow, Blazer, Tazer, Red Skull, AIM Agent x2
Minifigures: Iron Man, Rescue, AIM Agent x2
Minifigures: Iron Man, Thor, Black Widow, Captain Marvel, War Machine, Nick Fury, A.I.M Agent and M.O.D.O.K.
Minifigures: Captain Marvel, Iron Man, Thor, Loki and Hulk (Bigfig)
So there you have it. There are some LEGO Marvel Eternal sets that have yet to be revealed but considering that the movie has been shifted to November, it would be more likely to encounter the reveals later in the year.