1. Who is Rey's family that left her alone as a little girl?
We're definitely led to believe that Luke is her father but I'm not convinced that is the case.. nor can I imagine Luke abandoning her like that in the hands of that Unkar character. Perhaps Lor San Tekka watched over her from a distance as Ben Kenobi did Luke but I still have a hard time believing Luke was the one that left her there. This question will most likely remain unanswered until we get closer to Episode VIII's release. Or perhaps Rogue One will lend us a few more clues. It is still quite possible that she is the offspring of Han and Leia imo, as unlikely as that was presented in the film. And although I don't subscribe to the theory that she is somehow a descendant of Ben Kenobi, the accent makes that an interesting argument. Chancellor/Emperor Palpatine also had an English accent... *cringes at the thought*
We don't know a whole lot about Poe either but he spent some of his childhood on Yavin with his parents who had fought for the Rebellion (apparently explained in the Journey to TFA handbook recently released). Could there be some kind of connection there? I feel he has a larger role to play moving into the final chapters. And we never once saw Poe and Rey together on screen... nor (gasp) Snoke! lol
2. Is Luke really her father? Is that a grave site he's standing next to at the end?
I really don't think Luke is her father tbh.. I know it seems obvious but I think the true explanation we receive will make just as much sense if he isn't. I do however believe that is indeed a gravestone he is standing next to in the final scene. But who's grave could it be? If you believe Luke is her father, I suppose it's possible it could be his wife or her mother. But again, I'm not convinced of that. If he has found the first Jedi Temple there, perhaps it's a marker for an ancient Jedi? Whoever it is you would think it would be someone of importance. Or it could turn out to be just a rock lol
3. Who is the mother? (midichlorians? HA!) If she's dead, did Kylo kill her??!!
If it's not Leia, I have no idea.. I don't think we're meant to know just yet. I just have a hard time seeing Luke or Kenobi shacking up in their deliberations with the Force (Ben on Tatooine and Luke after the events of ROTJ.. both had far more pressing responsibilities)
4. The new Deathstar 3.0 is destroyed, will there be a 4.0? If not, then what WILL it be?
Dear God I should hope not. Unless all these wild KOTOR theories come true and they discover the Star Forge lol. Is Luke on Rakata Prime? Perhaps in name and the planet does have some similarities but I really have a hard time believing they would tie in an old (albeit incredible) video game, as awesome as that sounds :p The Temple of the Ancients? Intriguing but nahhh
5. If Snoke ISN'T Plauegis, then how is he connected, if at all, to the past?
Snoke is definitely an enigma. If Maz has existed as long as Yoda (over a thousand years), I get the sense this guy has too. Leia mentioned him, so he's known to them. And I'm sure Luke is somehow aware, especially if he is indeed a Sith Lord.. but is he? I think Rey and her blurry past is the key to all of this somehow.
6. Will the Knights of Ren show up in Ep 8 as a big threat? Who are they?
Adam Driver referred to them in an interview as "the Beatles of the Dark Side".. lol. And Kylo Ren is referred to as their Master by Snoke. But do they still exist? If they do, they will most certainly play a part in the events to come but I'm under the impression Kylo and/or Luke killed them all during that confrontation at Luke's Jedi Academy. Cloudy the future is
7. If Luke really IS the father of Rey, that means we're getting another "I am your father" moment in the future. Is that necessary or a good thing?
No. I'd rather hear her say "Luke I am your farmer" lol. It would hold more weight to me if Han were her father, even if she (and Leia) had to discover that after the fact. Or perhaps Palpatine.. that theory is becoming more intriguing (and horrifying) to me... and would further explain the look on Luke's face at the end there :S
8. Is Kylo being set up for a redemption, a la Vader, killing Snoke at the end of Ep 9? Or are his crimes too severe?
I think that's in the realm of possibility, yes. As unforgivable as killing our beloved Han Solo and his father was, he is still trying to convince himself he's a badass of the Force like Vader was. Rey brilliantly brought that to light. That inner struggle with the light will continue.
*furthering crazy Palpatine theory - Could it be that Rey is in fact the descendant of the dark Lord Sideous himself? It would be imperative that Luke turn Kylo back to the light, defeat Snoke and confront Rey together should she take up her father's mantle in some insane crazy twist of fate.. yikes*
9. Force ghost Obi Wan and Yoda in Ep 8? Luke and two Jedi Master ghosts training Rey ! maybe she can ride on Luke's back as he flips around the hillside! It's like poetry.
Ok back to reality lol. Yes, I do believe Force Ghosts will play a part in the chapters to come. We saw a glimpse of that when Rey touched Anakin/Luke's lightsaber, albeit as quick as force lightning. I do think they will play a more prominent role moving forward.
WHEW! A lot to ponder and digest.. I freakin' LOVED this movie and can't wait for the next!