User blog comment:J Shepard/Effects of M.E.2 Side Missions in M.E.3/@comment-1596833-20120107060428

They should. Some in ME1 had pathetic emails, others had a minor appearance. Maybe even a twist where our actions effect Co-op(That would be very hard to do though, it would have to be every person has the same outcome; Lucky for us, must missions had two ultimate choices)