The only source I truly trust is my local LEGO mgr as they know info before the rest of the world and are held to secrecy. Which is why I don't share info on sets that are not yet rumored or known.
The statement LEGO released a month or so ago stating that EOL dates are not changing should be the primary source we use. The only question is, which sets were scheduled to end this year?
One thing my favorite store mgr did say is stock is questionable, especially for large sets, through Christmas (already suspected) and that LEGO was focusing production on new product not those that are either going EOL or continuing through next year. So I'm sure we'll see lots of Monkey Kid, Dots, and the like this year, but large sets might be very hit or miss and I doubt we'll see discounts for many if any of them.
Then again, maybe everyone will just be tired of LEGO by Christmas. LOL, just kidding.