BioWare is releasing a new trailer for Anthem that will be out three days before E3, possibly showcasing what will be highlighted on stage during EA's press conference.

A tweet from their official account has a short teaser for the reveal, which will be on June 9.

Our Take:
Teasing a tease for a tease seems to the be the nature of reveals these days. It is obvious that Anthem would make an E3 appearance, so teasing a trailer that is basically a tease for the E3 presentation seems like a bit much; similar to how many times I just used the word tease. 

Source: Game Informer BioWare Teases New Anthem Trailer