@Scottie - There needs to be a complete side mission playthrough before launch. I really need to see the dialogue, exploration and combat flow - not little unconnected snippets.
And I agree, someone else needs to direct these trailers as they seriously lack the sense of wonder and/or tension that the old trailers for ME1-3 created. Some narrative to provide context to what we're seeing would be nice too.
ANother thing I noticed - this is the second trailer with a combat sequence and where the hell are the AI team mates?