"In Mass Effect 3, we were given the three options: red, green or blue control, synthesis or destroy. All which have a big effect on the Galaxy. Two of which involve Reapers walking around, and one were everyone is a synth."
If you wouldn't mind me stepping in on this one? Bare with me. If I may suggest; Shepard Died on Earth running up to the beam.
Her Final moments were only that of a dream which took place in her own mind. When we die our brains do have ways of making us feel better. And if you accept the idea of the Indoctrination Theory, the Endings make the most sense when they are applied.
The IT Theory saves the Endings from being completely horrible.
"Now, we could be wrong, and Bioware will probably make a Dragon Age Keep kind of thing (which would be awesome)."
Prolly, in fact it would make the most sense, especially if they want the consequences of the player's story to carry over.
"Destroy really has no effect."
Expect for the 'Breathing Scene'. Shepard's Last Breath. The final inhalation before the brain surge of activity occurs before all life functions cease. Ever think about near death experiences? A sense of peace, tranquility, perhaps even euphoria. But consider that None of the choices have any effect on the Galaxy really. Because they didn't really happen? If you chose The Destroy Option, are you really telling me you believe that Shepard is so strong that she/he as a human being could survive the Citadel's Massive Explosion, (which would be the equivalent of surviving a Nuclear blast) The Reentering of Earth's Atmosphere where she would have evaporated, the Descent back down and survive the Impact with the ground only to be crushed by concrete (when there's no Concrete on the citadel) and still come out breathing? NO. If I may remind you, The only thing it took to kill Shepard at the beginning of ME2 was suffocation.
Choosing the Destroy Option is your Shepard's will to defeat the Reaper influence affecting her mind.
Destroy is the only Paragon option at the End of the Game? Why? Because I don't believe everything the Starchild says.
"And just as I'm writing this it occured to me: there is the refusal/ trying to shoot star brat option. WTF happens then?"
And that if nothing else in my Opinion is one of the strongest pieces of evidence for the idea that the ending didn't even happen.
You weren't talking to a Starchild, you were Talking to Harbinger.
Shoot the kid or reject him Verbally and his voice turns to Harbingers and he says "SO BE IT." There would be no Mass Effect Andromeda if the Reject ending happened. And Think about it this way, if part of the premise of ME:Andromeda is Humans finding a "New World", why then would they need to find a new homeworld if Commander Shepard had defeated the Reapers?
It would make sense if the ending never happened, but only occurred in Sheps mind.
And maybe Liara actually DID leave that tech on random worlds they encounter. It might be something that happens anyway.
Wouldn't, if Shepard died and the Humans retreated, Liara still want to warn future civilizations as a contingency?
So to my final point? Maybe that huge ship you see in the N7Day Trailer was the crucible?
And Humans needed to find another world, Safe from the Reapers? And traveling between Galaxies I'm sure would take Much time.
Cannon? Maybe Humans are just on the Run, trying to survive the Harvest. And that's how it starts out.
At least that's what I think. 