One of the things that the previous 6 episodes didn't fully take advantage of is its setting. The OT was slightly better at this than the PT, by showing asteroid fields and gas planets, but there's so much more to space. Will we see supernovas? Nebulas? The effects of a black hole (perhaps an unsuspecting Starfleet is lured into a black hole as a battle strategy)? How about red stars? Blue stars? Orange stars? White stars? Giant stars? Smaller stars? More binary stars? Will we visit planets that have very low gravity, like Earth's moon? Or very high gravity? Will we see planets where the atmosphere is not breathable for humans, that requires them to wear oxygen-masks? Or no atmosphere at all, where the stars at night truly illuminate the sky? I hope we see all of this and more, it's time for Star Wars to fully take advantage of its setting!