@Everyone: Thanks for keeping me on-topic. I really should get back on the subject of Episode 8, instead of drifting off-topic as I sometimes do.
)
According to "Mike Zeroh" at YouTube, Supreme Leader Snoke's home planet has been leaked for Episode 8. It resembles a terraformed Mars, with snow and a breathable atmosphere? Shooting for this location has already been done in Dubrovnik, Croatia, with additional images of a town or city with futuristic-looking windows and security devices.
There are also some other channels I go to on YouTube, including "The Stupendous Wave" for theories and plot leaks about Episode 8. They are informative, but also tabloid-like...