In all honesty, I hope they don't change it, I swear ME3 was the greatest Mind blower I've ever played! Finally someone put up a totally evaluation meaning to clear it all up to better understand Mass Effect's meaning and your character's goal.
NOTE: SPOILER ALERT! MAJOR SPOILER ALERT!!!!
Please watch:
As you see based on your choices, Shepard can STILL live! You'll see him breath near the end.
If Bioware changes it, they would lose even more respect. Take harry potter for example, did J.K.Rowling change it? No. It was their story, their creation, and they got respect for it.