Chris Schlerf, one of the writers at BioWare that was working on bringing Mass Effect Andromeda to life has decided to move on to Bungie to help impart a deep narrative in, presumably, the sequel to Destiny.
To confirm what some folks asked about a few months back, I am no longer working on ME:A at BioWare Montreal.— schlerf (@schlerf) February 16, 2016
But this isn't necssarily surprising give that the story to ME: Andromeda is likely very much finished giving this prolific writer the opportunity to work on something else. And he's gone on to be the lead writer at Bungie, currently working on Destiny, or so his profile says. This could mean an actual story is on the way in the form of DLC or that Destiny 2 could contain a much more expansive fiction and backstory.
Thankfully on his way out Schlerf mentioned how proud he is of the story and how great he thinks Andromeada will be. In a Tweet late last night he mentioned how it's "really gonna blow people away," further explaining how proud he is of his involvement.