Star Wars Episode VII predictions

I am feeling nervous about Star Wars Episode VII. This time tomorrow night I will have seen it.

Several people have asked me what I think is going to happen. At the risk of SPOILERS I have decided to list my ideas of what might happen here before seeing it so I can either come back and say 'Ha! I'm psychic' or have a good laugh at my own expense at a later date.

Disney have announced all the 'Expanded Universe' lore that has built up is no non-canon, so there's no point looking to that to inform these guesses. This is new. So, here's what we know / have gleaned from trailers and toy packaging. The Empire was not finally defeated at the end of Return of the Jedi. It is now resurgent as the 'First Order'. There is a Resistance who fly X-Wings and fight the First Order. One of the First Order leaders is the lightsaber-wielding Kylo Ren. The  First Order are building a superweapon, probably called the Starkiller Base. The heroes of Episodes IV-VI are back, presumably out of hiding. At one point they are fighting First Order snowtroopers in a snowy place. The lead new characters are called Rey, Finn and Poe. (Really good one syllable naming conventions in the Star Wars universe.) Rey is a scavenger on an old battleground trying to find out what happened to her family...

My thoughts on this.

Is Kylo a name or is Ren a name? Kylo could be a title like Darth or Moff.

Ren and Rey are quite similar names. Could they be brother and sister?

Rey is looking for her family. Could she be Han and Leia's daughter? That would fit the Star Wars trope of all named characters being related. Does that also mean Ren is Han and Leia's son? That would make him Luke Skywalker's nephew. Did Luke try to train him in the ways of the force and he succumb to the Dark Side? Is Ren the person in the trailer holding Vader's melted mask and promising to finish what he started? Is the Starkiller base the updated Death Star?

I've seen some trailer footage that looks like Rey crying behind Chewbacca's body. Will Chewie get killed? Actually, are any of the original heroes going to make it through this? Luke could die in a similar fashion to Obi Wan Kenobi in Episode IV.

So,lots of questions. The upshot is I think Ren and Rey are brother and sister fighting on opposite sides of the re-emergent civil war; a war their parents, Han and Leia, thought they had fought and won. I predict a last-gasp victory for the Resistance and destruction of the Starkiller base. And I don't think the original heroes are going to make it through unscathed.

Those are my predictions. I will find out tomorrow night how right or wrong I was.