Much nerd and theory time!
I mentioned elsewhere how TFW seems to have ideas and similarities to a certain Star Wars game series, and that is the Dark Forces/Jedi Knight franchise, which was also part of the old EU.
So get this......
Brief summary........ Kyle Katarn, the main character of those games was once a former Imperial Stormtrooper who defected to the Rebellion, and also later became a Jedi Knight/Master. His character himself is also many elements of Han and Luke combined. Other significant story plots includes him edging towards the Dark Side, Dark Jedi and the Valley of the Jedi.
(These games are currently on Steam's Xmas sale too so give them a go if you have the chance. They still consistently remain some of the best SW games ever.)
From the EU New Republic/New Jedi Order era books, you had a Ben Skywalker (Luke's son) and Jacen Solo/Darth Cadeus (Han and Leia's son). How about when Chewie dies saving one of Han's other children, Anakin Solo ..... from a moon drop!
Seems like familiar story ideas don't you think?
Basically going by what has happened in TFW.....
-Finn could potentially be a Kyle Katarn type?
-Kylo Ren/Ben Solo is practically the idea of Ben and Jacen combined. And considering Kylo is actually not a Sith, yet is on the Dark Side and also conflicted, his position is similar to the "Dark Jedi" concept.
-We find that it wasn't Chewie that died, but Han! And the hilarious irony being that it is still related to a Han Solo offspring!
-Luke literately is the "Valley of the Jedi". In the Dark Forces II: Jedi Knight game, a major plot point was that a map was required to find that secret location, with both good and bad guys searching for it. Funny huh?
-Hell even in Jedi Knight II: Jedi Outcast, one of Luke's disciples (Desann) turned against him and became the main villian of the game.
So yeah, you can see why it comes as no surprise for any long time Star Wars fan to notice if Disney/Lucasfilm are cherry picking ideas and concepts from the old EU books, games, comics etc to use as material for the new trilogy movies.
I mean what next, an Admiral Thrawn character or the dreaded Yuuzhan Vong?
With Benicio del Toro in Episode VIII, people are already suspecting that he could play a Thrawn, which quite honestly for me would be awesome since he would look the part.
The whole racial issue with the Galactic Empire i.e. old white supremacist men and Thrawn, a high ranking alien and eventual remnant leader, was why the character was so interesting and became popular.
When you think also about it, Snoke himself is obviously not human, and he leads the First Order. So looks like that part is already done.