1. She grew up on a desert planet like her grandfather and father before her.
2. wears similar clothing
3. she is seen having a X-wing Pilot doll and a Rouge Squadron helmet,,even though its not " Red One"-Luke's code name.
4. She lives in a downed AT-AT walker, what did Luke bomb down on Hoth? an AT-AT walker
5. in the final battle with Kylo/Ben Solo- they both reach for the " Excalibur- like" Skywalker blood-line lightsaber but it flys past Ben Skywalker-Solo straight to Rey- Similar to how Luke pulled it out of the Snow while being held captive from the Wampa.