hi! 1 thing i dont understand In the ending no matter what shepard dies,, so after credits how does the dude decide to tell another story about shepard if he died then, and they are humans even after the synthesis or green explosion. man ithink comander shepard will return in another mass effect spin off to again save the galaxy but the creators will say its artistic and unrelated to me3. anyway the reapers have won!
Basically, it think the last scene locks in one of the endings as cannon (based soley off of the framing of the end), but whether this was intentional or an oversite is yet to be seen.
As for why the're still human after the green blast ending (or why the scene is identical after every ending for that matter), I think that it's supposed to be covered by his "a lot of the details were lost through the years" comment, it just failed miserably to do so.
I actually see no problem with that part, well, other than the general lameness of it.
If you think about the trilogy, there are many things Shep did. The old man could be telling the story of how Shep killed Saren. Then he can tell the story of how Shep Revived the last Prothean, etc. etc.
It is a capital mistake to theorize before one has data. ...one begins to twist facts to suit theories.... Sir Arthur Conan Doyle