Just watched the launch trailer and, holy shit, that thing gives anyone on Era pretty much complete reign to spoil most of the main plot points and moments in the entire story. I won't, of course, but there's literally nothing stopping me from saying:
Cliff is BB's father and Ciff dies trying to save him from a government facility
Mama and Lockne are twins and Mama dies
Bridget and Amelie are the same person
Deadman becomes attached to Lou/BB
Sam names his BB Lou after his kid who died
Higgs has the ability to control people and wants to start extinction
And more most likely
Alongside posting images of some of the climactic boss fights and ending scenes.
So, yeah, if you are feeling a bit dickish then the Launch Trailer gives you the ability to post all those things on here without spoiler tags.