Bioware employees have been teasing quite a bit on their Twitter accounts recently, and here's something that I found rather interesting Ken Thain (cinematic director) at Bioware shared.
Maybe they're working on a trailer? Or possibly cutscenes? There's no way to tell but I hope we'll see something interesting about Mass Effect Next on E3 this year.
Link to the twitter post: https://twitter.com/KenThain/status/580450801610522624