Originally Posted by Galadriel:
“I'm kinda hoping for no cliffhanger, solely because I would prefer the 50th to be accessible to people who may not have seen the series. As a stand alone "50th Special" it might attract new viewers who might realise what they have been missing and become new fans.”
People who have not seen the series would have not seen the cliffhanger either, so it makes no difference to them. A cliffhanger doesn't make the 50th less accessible, it only provides fans with something to ponder over which is good otherwise we'll have nothing to discuss for 6 months.