I don't know if it has come up at all but right there at the end, as the Falcon came out of hyperspace, for a split second, I wondered if Abrams was going to put Luke & the first Jedi temple on Earth. Just for a second.
The Force Awakens '80?
Guest Starring Dirk Benedict?
There is/was a old scrapped Lucasfilm project that had the origin of the Star Wars galaxy being colonist from Earth...sooooo
The secondary storyline, told through excerpts from a document called The Human Exodus, traces the origins of the Human species to a lost expedition from 25th century Earth. It also makes references to George Lucas's previous films, American Graffiti and THX 1138.
...
"Another place, another time. A world called Earth, in its early 25th century, is moving toward a totalitarian, computer-controlled society."
...
The Human Exodus begins on Earth, in the 25th century. The three main characters—computer hacker Dale Hender, space pilot Antonia Corelli, and her lover Paxton Solo—are leaders of an underground movement resisting the computers who have taken control of Earth's society. Hender discovers that the computers intend to force-feed the people of Earth drugs to control their emotions. They also learn that the computers intend to strip away the identities and family ties of the Humans under their control by replacing their names with serial numbers (Hender is to become the first of the THX series, THX-0001).
Pray that JJ doesn't go to far down the rabbit hole.
I think the idea might have been to Asimov/Niven that Lucas cinematic universe into one be linked generational story like Asimov and Niven have down with their books.