Personally, I think Shepard should return in half-life 3 or episode 3 ( whatever you want to call it)
I don’t think I could conjure up a viable reason for Shepard joining Gordon but I think that it would be good to flesh out Shepard’s personality and story. I genuinely think Valve could create a good character out of him.
but that is just my opinion. how do you think Shepard should fit in? do you think he should be part of Gordon’s story at all? Discuss