I thought originally Finn was supposed to be a guy who discovered his force powers as an adult.
The title "The Force Awakens" makes way much more sense that way. It would have been a way to reintroduce the force to a new audience and putting it back to being more spiritual than a stat check in the midichlorian count. (Is it only me or when authors introduce dbz style power level numbers, it always end up bad and ruining the feel?)
Disney could have picked most posters from this thread and they would have end up with a better overall trilogy.
I initially thought that Finn was going to be a FO storm trooper who discovered he also had force powers, and he and Rey would go find Luke's Jedi Academy. And I'd sigh and roll my eyes at the diversity pandering but then that would neatly tie into Luke getting to play yoda for the new generation and doing Yoda "on Wax, off Wax. mmm yes, see the shine, I should" to them to teach them the force and both of them learning Jedi shit as he passes the torch to the new generation and we all learn a valuable lesson that respecting our elders isn't mutually exclusive from making them understand we are adults down and need to be making our own decisions.
Instead we got A story for another time and Subverted Expectations