The Light Saber -- spoilers
Where did it come from? Seriously. The last we saw it, it was tumbling from Luke's severed hand in TESB. So how did Moz end up with it? And how did she know it was Luke's? And why was it referred to as LUKE'S, when the original trilogy makes a point to say it was ANAKIN'S? (Ok, that question I get, given that Luke was the last person to use it.) I was hoping, after I saw VII, that some of these questions would be answered, but given that the light saber was destroyed, I don't see that they will.
Also. Why wasn't Luke's projection using his green one? What happened to it?