I'm not gonna make it seem like I know the Eternals probably one of the rare properties from Marvel I have no clue about. Granted I like this Trailer in what they gave us and I wanna know who or what is making them get involved.
Welp alot of people were wondering why didn't they help us vs Thanos and you find that it seems someone who looks like Galactus said nope and you better listen to him if it so him when he says don't you get involved or else! It could also be Arishem and I'm pretty sure he would whoop his ass. You don't want to fuck with the Celestials people!
Apparently it is Arishem