What is going to prevent her from running hard and then some unheard of nobody comes out of nowhere and runs away with the nomination? that's more than pressure. That's Hillary in a padded cell.
Actually I think it will be the opposite. She’ll decline to run, all the while making loads of public appearances, “looking good” (for her), etc. The DNC will have a plan... They’ll run someone who cannot win, who will do the heavy campaigning. Hillary cannot campaign because (1) she’s getting old and (2) she really cannot travel so much with her blood clots history. Then at the last minute before the convention, some terrible fate will befall the seemingly designated candidate, and Hillary will rush in at the convention, grabbing the nomination, without having done any campaigning. Just my speculation.....