I think the debate will go ahead. I am interested in how she will appear walking to the dias or over to the lectern. Watching her walk reminds me of my Mom’s gait in her 80s — slow, unstable, hunched over, shuffling little steps. You cannot cover that up as it is caused by physical changes to the body. Her old-lady stride will be a stark comparison to the commanding March Trump will make. Serious style and capability/infirmity points will be won and lost before anybody says a word.
She will look healthy.
The candidates will be at the podium when it starts. Everything possible will take place for Hillary. Heat from lighting, A/C ad fans. Noise distraction will be very limited by all her people in the audience. They will have a delay switch and power interruption if she fails. All else fails, she will pull a handgun and shoot Trump/s!
I think how sick she is has been exaggerated, to create a sense of surprise at how “great” she looks.