An aging hero perishes and passes the torch in the first film of each trilogy now. I wonder what other parallels we'll see in 8 and 9?
I can see there being a Luke/Kylo Ren light saber duel in the next movie paralleling the Luke/Vader duel in Empire Strikes Back.
Given the plot structure of TFA, I see something like this occurring...
Rey will be training with Luke when Kylo Ren sets a trap for Rey using her friends as bait. Rey will go off to rescue her friends over the objections of Luke, who feels that she's not ready. Rey will be totally out-classed and when Ren has Rey at his mercy, he'll reveal the secret of her parentage. Also, there will be a cliff-hanger involving one of Rey's friends, probably Finn.