Star Wars The Force Awakens: Kylo, Rey Skywalker ancestry and is Vader back?

Here's the Star Wars: The Force Awakens trailer. It's so damn good. I'm so happy watching it that I cried. Some interesting notes after watching this many times. Listen carefully at 58 sec. Was that Darth Vader's heavy breathing that I'm hearing in the background when Kylo Ren was speaking? If so, will Vader be back? If not in The Force Awakens maybe the next film?

Regarding Kylo, we know from JJ Abrams that he is not a Sith. At least not yet. I believe he is from a Darth Vader cult of some sort. He and Rey could also be siblings. Both are likely the son and daughter of Han Solo and Leia. And that means both are Force sensitive like Leia's brother Luke Skywalker.

Talking about Luke, it's interesting that we don't see him in the movie poster or in the trailer. We do see someone with a robotic hand touching R2D2 in the trailer. He's in the movie of course but I bet he will only appear at the end to teach Rey and Finn the way of the Force.

I believe Finn is also Force sensitive. He may be a Stormtrooper before but he clearly is on the good side as we can see from the trailer. He even wields what looks like Luke Skywalker/Anakin's lightsaber. Some are speculating that Finn could be a Skywalker. I doubt it but he and Rey, the two young leads of this movie will be Jedis by the start of the next Star Wars film.

I cannot wait to find out what JJ has in store for us. Star Wars: The Force Awakens opens in Singapore on December 17 2015.