Won't get that far, a peak pre-christmas is already practically guaranteed, the only consolation is it should burn out extremely quickly.
I don't think so, they would have done it already.
It's too late now, infection is already so high and there will be a mass of mixing over Christmas which they can't stop, and people likely wouldn't listen even if the government tried to enforce it.
Takes time to plan for a lockdown, then enforce it, and then another week or two for it to take effect, by then we will already be at/ near a natural peak.
I'm not sure if healthcare would prefer a short/ sharp hit, or longer sustained pressure, but either way I feel really sorry for them. Need the booster wall to hold up very well.