Sounds like it's mainly more details about some of the games they showed on Sunday and not new stuff. Might get some details about games that couldn't show up this year but I wouldn't suspect anything major out of this stream.
Oooh, I didn't know about this. Maybe we'll get some more info about Hellblade 2 or Avowed. Probably not much but possibly a taste. The article mentions surprises may be in store... new aquisition maybe??? I know there was some speculation they would reveal a new acquisition at E3.