Recent flu vax rates doesn't bode well for either vaccinations for the flu or Covid when we get one. If Trump is re-elected, there will be no change in policy and some enabling of behavior that will be counterproductive to any control of transmissions. Some will continue to feel they have a Constitution right to infect others and get the best medical care when they need hospitalization. I doubt anyone but a few idiots believes if ACA is ended by SCOTUS that there is a wonderful, low cost health plan with the same coverage and protections. We can all remember those who said the flu mortality is worse but don't step up and get vaccinated against it.
Winter also brings on Respiratory syncytial virus (RSV) and pertussis (whooping cough) in children and infants, but may occur in seniors. Both are highly contagious especially in close quarters. Prior to Covid, of the children hospitalized for an older coronavirus 85% of children had RSV. Children with both one of the older coronavirus infections and RSV needed intensive care at about the same rate as those who only had RSV. Worst case symptoms require emergency tracheostomies. However, having a higher viral load of that coronavirus was linked to more severe illness. Perhaps RSV with co-infection of a novel coronavirus would increase the rates of intensive care and the severity of symptoms.
Minimizing the effects of viruses this winter will be mask-wearing, social distancing, early intervention as rates rise, vaccinations, handwashing, quaranteening when necessary, early contact with physicians for testing and evaluation for adults and children and awareness of emergency symptoms in children. Behavior change may be necessary in some cases for the safety of others.
As Covid is filling up some hospitals, the area hospitals in some cases are arranging that one of them with pediatric ICUs take non-Covid pediatric patients. I would imagine those ped patients with a Covid co-infection would stay, though I am not sure if the accuracy of current Covid testing is the same for children.