Yes, it's an overview of the factors that will likely drive R0 to increase during winter months. R0 is highly context dependant variable, it is not a constant.

Yes, it's an overview of the factors that will likely drive R0 to increase during winter months. R0 is highly context dependant variable, it is not a constant. What evidence are you drawing upon to suggest that immunity will have accumulated by then enough to limit outbreaks to small containable clusters?