Really my only nit is that Katherine Wentworth, Pam and Cliff's sister, isn't dead. Bobby said she was, but I don't see how he'd know that given her exit during the original series. Katherine was killed during the dream season, so its entirely possible that's what the writers remembered, but it's also possible the Ewings learned of her passing in the interim between the series end and the reboot.
Which is what I figured. With 20 years between the final episode of the original and the beginning of the "14th season" anything could have happened. Perhaps Morgan Brittany didn't want anything to do with the show and they "killed her off." Or maybe they just think she's dead.
that happens seems to be attached to a plot twist, I wouldn't assume much of anything at this point.