The words whispered by Laura to Agent Cooper are a mirror of what she whispered to him originally
"My father killed me.." mirrored is "I/You will kill my mother...."
This is why Cooper grimaces on hearing them.
Sarah is channeling so much she needs stopped and Laura/Cooper kill Sarah in trying to stop an influx of all of the lodges denizens into this world.
Red is Tremond's Grandson .
There is no good resolution or ending, it ends with the door between the worlds left ajar and for people of this world that means more pain and suffering.
The presence from Year Zero is the culmination of what happens if the portals rip open. Lynch/Reznor and Frost expand the TP/Year Zero and Mulholland Drive into one big world.
If I'm not mistaken, in the original series finale Sarah Palmer is inhabited by Windom Earle and taunts Major Briggs by saying something like "I've made it into the Black Lodge." Does anyone else think he may still be inside Sarah?
She just says, "I'm in the lodge with Dale Cooper..." so I've been thinking she was either channeling Leland or Laura. We saw them both still in the lodge at the start of Season 3. Earle seems to have been completely annihilated by BOB (at least that's what I hope hope, cuz the Earle character was a bore to me after all the hype before he arrived).