It's S7 part 1 and S7 part 2 not
S6 and S7.
I'm not quite sure where we disagree.
If S7 is designed to be two halves and both halves can stand on their own, even if "The Beginning" and "The End of an Era" are companion pieces, then that's great, regardless of whether or not there's a cliff-hanger two bridge the two haves.
If S7 is structured like previous seasons and is just an overall story broken in half with a nine-month hiatus in-between, then not so great, regardless of if there's a cliff-hanger.
They're not quite the same thing. It sounds like it's going to be the former. I'm just saying I hope it doesn't turn out to be the latter.