I really hope they rehashed everything so that it would provide a "reboot" into Eps 8 and 9... although I think Disney is promising to release a movie a year that's Star Wars related, so expect to see all kinds of spin-offs like a Boba Fett trilogy, etc... they're going to kill Star Wars for us by overdoing it.
I don't have as much of a problem with Ep7 because it's classic JJ Abrams.... I mean you eat mediocre foot at the Abrams restaurant 8 times in a row, why expect great food the 9th time right? He's always preferred mystery over actual storytelling and Ep7 was full of lazy lazy lazy directorial decisions just glossing over scenes that have obvious information required in them while saying nothing about it and moving on to the next one.
If you ever get a chance, watch JJ's Mystery Box TED talk someday... it pretty much explains his philosophy on how all his movies and TV shows are.
This one: